90733608 has 160 divisors (see below), whose sum is σ = 295162560. Its totient is φ = 25505280.

The previous prime is 90733589. The next prime is 90733609. The reversal of 90733608 is 80633709.

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

It is not an unprimeable number, because it can be changed into a prime (90733609) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 376368 + ... + 376608.

It is an arithmetic number, because the mean of its divisors is an integer number (1844766).

Almost surely, 2^90733608 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 90733608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147581280).

90733608 is an abundant number, since it is smaller than the sum of its proper divisors (204428952).

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

90733608 is a wasteful number, since it uses less digits than its factorization.

90733608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 90733608 is about 9525.4190459003. The cubic root of 90733608 is about 449.3548087270.

The spelling of 90733608 in words is "ninety million, seven hundred thirty-three thousand, six hundred eight".