90705372 has 24 divisors (see below), whose sum is σ = 212016000. Its totient is φ = 30182256.

The previous prime is 90705367. The next prime is 90705383. The reversal of 90705372 is 27350709.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 879 + ... + 13497.

It is an arithmetic number, because the mean of its divisors is an integer number (8834000).

Almost surely, 2^90705372 is an apocalyptic number.

It is an amenable number.

90705372 is an abundant number, since it is smaller than the sum of its proper divisors (121310628).

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

90705372 is a wasteful number, since it uses less digits than its factorization.

90705372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13225 (or 13223 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 33.

The square root of 90705372 is about 9523.9367910544. The cubic root of 90705372 is about 449.3081913121.

The spelling of 90705372 in words is "ninety million, seven hundred five thousand, three hundred seventy-two".