97601820 has 48 divisors (see below), whose sum is σ = 282713760. Its totient is φ = 25129216.

The previous prime is 97601809. The next prime is 97601821. The reversal of 97601820 is 2810679.

It is a super-2 number, since 2×97601820² = 19052230534624800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97601821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26307 + ... + 29786.

It is an arithmetic number, because the mean of its divisors is an integer number (5889870).

Almost surely, 2^97601820 is an apocalyptic number.

It is an amenable number.

97601820 is an abundant number, since it is smaller than the sum of its proper divisors (185111940).

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

97601820 is a wasteful number, since it uses less digits than its factorization.

97601820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56134 (or 56132 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 97601820 is about 9879.3633398109. The cubic root of 97601820 is about 460.4183654472.

The spelling of 97601820 in words is "ninety-seven million, six hundred one thousand, eight hundred twenty".