4969521 has 12 divisors (see below), whose sum is σ = 7225972. Its totient is φ = 3290976.

The previous prime is 4969483. The next prime is 4969567. The reversal of 4969521 is 1259694.

It can be written as a sum of positive squares in 2 ways, for example, as 3381921 + 1587600 = 1839^2 + 1260^2 .

It is not a de Polignac number, because 4969521 - 2¹³ = 4961329 is a prime.

It is a super-2 number, since 2×4969521² = 49392277938882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4969571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 346 + ... + 3171.

Almost surely, 2^4969521 is an apocalyptic number.

It is an amenable number.

4969521 is a deficient number, since it is larger than the sum of its proper divisors (2256451).

4969521 is a wasteful number, since it uses less digits than its factorization.

4969521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3680 (or 3677 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 4969521 is about 2229.2422479399. The cubic root of 4969521 is about 170.6494305476.

The spelling of 4969521 in words is "four million, nine hundred sixty-nine thousand, five hundred twenty-one".