97790 has 32 divisors (see below), whose sum is σ = 221184. Its totient is φ = 30240.

The previous prime is 97789. The next prime is 97813. The reversal of 97790 is 9779.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 707 + ... + 833.

It is an arithmetic number, because the mean of its divisors is an integer number (6912).

2⁹⁷⁷⁹⁰ is an apocalyptic number.

97790 is an abundant number, since it is smaller than the sum of its proper divisors (123394).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110592).

97790 is a wasteful number, since it uses less digits than its factorization.

97790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152.

The product of its (nonzero) digits is 3969, while the sum is 32.

The square root of 97790 is about 312.7139267765. The cubic root of 97790 is about 46.0714076821.

The spelling of 97790 in words is "ninety-seven thousand, seven hundred ninety".