89881386 has 24 divisors (see below), whose sum is σ = 209112480. Its totient is φ = 25680312.

The previous prime is 89881373. The next prime is 89881409. The reversal of 89881386 is 68318898.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152566 + ... + 153153.

It is an arithmetic number, because the mean of its divisors is an integer number (8713020).

Almost surely, 2^89881386 is an apocalyptic number.

89881386 is an abundant number, since it is smaller than the sum of its proper divisors (119231094).

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

89881386 is a wasteful number, since it uses less digits than its factorization.

89881386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305738 (or 305731 counting only the distinct ones).

The product of its digits is 663552, while the sum is 51.

The square root of 89881386 is about 9480.5794126730. The cubic root of 89881386 is about 447.9435150139.

The spelling of 89881386 in words is "eighty-nine million, eight hundred eighty-one thousand, three hundred eighty-six".