90784674 has 24 divisors (see below), whose sum is σ = 203484060. Its totient is φ = 29217888.

The previous prime is 90784663. The next prime is 90784693. The reversal of 90784674 is 47648709.

It can be written as a sum of positive squares in 2 ways, for example, as 90725625 + 59049 = 9525^2 + 243^2 .

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, 86437 + ... + 87480.

Almost surely, 2^90784674 is an apocalyptic number.

90784674 is an abundant number, since it is smaller than the sum of its proper divisors (112699386).

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

90784674 is a wasteful number, since it uses less digits than its factorization.

90784674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173954 (or 173951 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 90784674 is about 9528.0991808440. The cubic root of 90784674 is about 449.4390937368.

The spelling of 90784674 in words is "ninety million, seven hundred eighty-four thousand, six hundred seventy-four".