97331790 has 64 divisors (see below), whose sum is σ = 240869376. Its totient is φ = 25156992.

The previous prime is 97331761. The next prime is 97331809. The reversal of 97331790 is 9713379.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 253939 + ... + 254321.

It is an arithmetic number, because the mean of its divisors is an integer number (3763584).

Almost surely, 2^97331790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97331790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120434688).

97331790 is an abundant number, since it is smaller than the sum of its proper divisors (143537586).

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

97331790 is a wasteful number, since it uses less digits than its factorization.

97331790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633.

The product of its (nonzero) digits is 35721, while the sum is 39.

The square root of 97331790 is about 9865.6875077209. The cubic root of 97331790 is about 459.9933678943.

The spelling of 97331790 in words is "ninety-seven million, three hundred thirty-one thousand, seven hundred ninety".