90894864 has 20 divisors (see below), whose sum is σ = 234811856. Its totient is φ = 30298272.

The previous prime is 90894857. The next prime is 90894889. The reversal of 90894864 is 46849809.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 1893643 = 90894864 / (9 + 0 + 8 + 9 + 4 + 8 + 6 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946774 + ... + 946869.

Almost surely, 2^90894864 is an apocalyptic number.

It is an amenable number.

90894864 is an abundant number, since it is smaller than the sum of its proper divisors (143916992).

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

90894864 is a wasteful number, since it uses less digits than its factorization.

90894864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893654 (or 1893648 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 90894864 is about 9533.8797978577. The cubic root of 90894864 is about 449.6208559535.

The spelling of 90894864 in words is "ninety million, eight hundred ninety-four thousand, eight hundred sixty-four".