90913392 has 60 divisors (see below), whose sum is σ = 255485880. Its totient is φ = 30178944.

The previous prime is 90913379. The next prime is 90913451. The reversal of 90913392 is 29331909.

It is a super-3 number, since 3×90913392³ (a number of 25 digits) contains 333 as substring.

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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37563 + ... + 39909.

It is an arithmetic number, because the mean of its divisors is an integer number (4258098).

Almost surely, 2^90913392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90913392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127742940).

90913392 is an abundant number, since it is smaller than the sum of its proper divisors (164572488).

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

90913392 is a wasteful number, since it uses less digits than its factorization.

90913392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2630 (or 2621 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 36.

The square root of 90913392 is about 9534.8514408983. The cubic root of 90913392 is about 449.6514041014.

The spelling of 90913392 in words is "ninety million, nine hundred thirteen thousand, three hundred ninety-two".