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BaseRepresentation
bin1001101101001
320211001
41031221
5124334
635001
720326
oct11551
96731
104969
113808
122a61
132353
141b4d
151714
hex1369

4969 has 2 divisors, whose sum is σ = 4970. Its totient is φ = 4968.

The previous prime is 4967. The next prime is 4973. The reversal of 4969 is 9694.

Subtracting from 4969 its product of digits (1944), we obtain a square (3025 = 552).

It can be divided in two parts, 496 and 9, that added together give a palindrome (505).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3600 + 1369 = 60^2 + 37^2 .

It is a cyclic number.

It is not a de Polignac number, because 4969 - 21 = 4967 is a prime.

It is a super-2 number, since 2×49692 = 49381922, which contains 22 as substring.

Together with 4967, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

4969 is a lucky number.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (4967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2484 + 2485.

It is an arithmetic number, because the mean of its divisors is an integer number (2485).

24969 is an apocalyptic number.

It is an amenable number.

4969 is a deficient number, since it is larger than the sum of its proper divisors (1).

4969 is an equidigital number, since it uses as much as digits as its factorization.

4969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 28.

The square root of 4969 is about 70.4911341943. The cubic root of 4969 is about 17.0643466763.

The spelling of 4969 in words is "four thousand, nine hundred sixty-nine".