90734574 has 24 divisors (see below), whose sum is σ = 211097448. Its totient is φ = 25924080.

The previous prime is 90734531. The next prime is 90734597. The reversal of 90734574 is 47543709.

It is a super-2 number, since 2×90734574² = 16465525837922952, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent 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, 154017 + ... + 154604.

It is an arithmetic number, because the mean of its divisors is an integer number (8795727).

Almost surely, 2^90734574 is an apocalyptic number.

90734574 is an abundant number, since it is smaller than the sum of its proper divisors (120362874).

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

90734574 is a wasteful number, since it uses less digits than its factorization.

90734574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308640 (or 308633 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 90734574 is about 9525.4697521960. The cubic root of 90734574 is about 449.3564034144.

The spelling of 90734574 in words is "ninety million, seven hundred thirty-four thousand, five hundred seventy-four".