4897521 has 12 divisors (see below), whose sum is σ = 7110480. Its totient is φ = 3248280.

The previous prime is 4897489. The next prime is 4897523. The reversal of 4897521 is 1257984.

4897521 is a `hidden beast` number, since 48 + 97 + 521 = 666.

It is not a de Polignac number, because 4897521 - 2⁵ = 4897489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4897523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 610 + ... + 3188.

It is an arithmetic number, because the mean of its divisors is an integer number (592540).

Almost surely, 2^4897521 is an apocalyptic number.

It is an amenable number.

4897521 is a deficient number, since it is larger than the sum of its proper divisors (2212959).

4897521 is a wasteful number, since it uses less digits than its factorization.

4897521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2796 (or 2793 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 4897521 is about 2213.0343422550. The cubic root of 4897521 is about 169.8212769935.

The spelling of 4897521 in words is "four million, eight hundred ninety-seven thousand, five hundred twenty-one".