4201969 has 2 divisors, whose sum is σ = 4201970. Its totient is φ = 4201968.

The previous prime is 4201963. The next prime is 4202017. The reversal of 4201969 is 9691024.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2480625 + 1721344 = 1575^2 + 1312^2 .

It is a cyclic number.

It is not a de Polignac number, because 4201969 - 2³ = 4201961 is a prime.

It is a super-2 number, since 2×4201969² = 35313086953922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4201969.

It is not a weakly prime, because it can be changed into another prime (4201961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2100984 + 2100985.

It is an arithmetic number, because the mean of its divisors is an integer number (2100985).

Almost surely, 2^4201969 is an apocalyptic number.

It is an amenable number.

4201969 is a deficient number, since it is larger than the sum of its proper divisors (1).

4201969 is an equidigital number, since it uses as much as digits as its factorization.

4201969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 4201969 is about 2049.8704837135. The cubic root of 4201969 is about 161.3680736873.

The spelling of 4201969 in words is "four million, two hundred one thousand, nine hundred sixty-nine".