97859580 has 96 divisors (see below), whose sum is σ = 337257984. Its totient is φ = 20646144.

The previous prime is 97859551. The next prime is 97859581. The reversal of 97859580 is 8595879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97859581) 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, 3502 + ... + 14421.

It is an arithmetic number, because the mean of its divisors is an integer number (3513104).

Almost surely, 2^97859580 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 97859580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168628992).

97859580 is an abundant number, since it is smaller than the sum of its proper divisors (239398404).

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

97859580 is a wasteful number, since it uses less digits than its factorization.

97859580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17955 (or 17953 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 51.

The square root of 97859580 is about 9892.4001132182. The cubic root of 97859580 is about 460.8233207297.

The spelling of 97859580 in words is "ninety-seven million, eight hundred fifty-nine thousand, five hundred eighty".