90505674 has 40 divisors (see below), whose sum is σ = 231774048. Its totient is φ = 25858440.

The previous prime is 90505631. The next prime is 90505687. The reversal of 90505674 is 47650509.

90505674 is a `hidden beast` number, since 90 + 5 + 0 + 567 + 4 = 666.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 38772 + ... + 41039.

Almost surely, 2^90505674 is an apocalyptic number.

90505674 is an abundant number, since it is smaller than the sum of its proper divisors (141268374).

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

90505674 is a wasteful number, since it uses less digits than its factorization.

90505674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79832 (or 79823 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 90505674 is about 9513.4470093652. The cubic root of 90505674 is about 448.9782149902.

The spelling of 90505674 in words is "ninety million, five hundred five thousand, six hundred seventy-four".