97090590 has 64 divisors (see below), whose sum is σ = 249785856. Its totient is φ = 24089472.

The previous prime is 97090573. The next prime is 97090597. The reversal of 97090590 is 9509079.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97090597) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23629 + ... + 27431.

It is an arithmetic number, because the mean of its divisors is an integer number (3902904).

Almost surely, 2^97090590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97090590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124892928).

97090590 is an abundant number, since it is smaller than the sum of its proper divisors (152695266).

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

97090590 is a wasteful number, since it uses less digits than its factorization.

97090590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3873.

The product of its (nonzero) digits is 25515, while the sum is 39.

The square root of 97090590 is about 9853.4557389781. The cubic root of 97090590 is about 459.6130804389.

The spelling of 97090590 in words is "ninety-seven million, ninety thousand, five hundred ninety".