11897562 has 16 divisors (see below), whose sum is σ = 24185952. Its totient is φ = 3900720.

The previous prime is 11897549. The next prime is 11897573. The reversal of 11897562 is 26579811.

It is a self number, because there is not a number n which added to its sum of digits gives 11897562.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15888 + ... + 16619.

It is an arithmetic number, because the mean of its divisors is an integer number (1511622).

Almost surely, 2^11897562 is an apocalyptic number.

11897562 is an abundant number, since it is smaller than the sum of its proper divisors (12288390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11897562 is a wasteful number, since it uses less digits than its factorization.

11897562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32573.

The product of its digits is 30240, while the sum is 39.

The square root of 11897562 is about 3449.2842735849. The cubic root of 11897562 is about 228.2895290731.

The spelling of 11897562 in words is "eleven million, eight hundred ninety-seven thousand, five hundred sixty-two".