97820364 has 48 divisors (see below), whose sum is σ = 237575520. Its totient is φ = 31288320.

The previous prime is 97820339. The next prime is 97820381. The reversal of 97820364 is 46302879.

It is a super-2 number, since 2×97820364² = 19137647226184992, which contains 22 as substring.

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, 62212 + ... + 63764.

It is an arithmetic number, because the mean of its divisors is an integer number (4949490).

Almost surely, 2^97820364 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 97820364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118787760).

97820364 is an abundant number, since it is smaller than the sum of its proper divisors (139755156).

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

97820364 is a wasteful number, since it uses less digits than its factorization.

97820364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770 (or 1768 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 97820364 is about 9890.4177869289. The cubic root of 97820364 is about 460.7617561155.

The spelling of 97820364 in words is "ninety-seven million, eight hundred twenty thousand, three hundred sixty-four".