90706392 has 80 divisors (see below), whose sum is σ = 290370960. Its totient is φ = 25914816.

The previous prime is 90706387. The next prime is 90706417. The reversal of 90706392 is 29360709.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 5463 + ... + 14534.

It is an arithmetic number, because the mean of its divisors is an integer number (3629637).

Almost surely, 2^90706392 is an apocalyptic number.

It is an amenable number.

90706392 is an abundant number, since it is smaller than the sum of its proper divisors (199664568).

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

90706392 is a wasteful number, since it uses less digits than its factorization.

90706392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20022 (or 20009 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 90706392 is about 9523.9903401883. The cubic root of 90706392 is about 449.3098754925.

The spelling of 90706392 in words is "ninety million, seven hundred six thousand, three hundred ninety-two".