97900065 has 48 divisors (see below), whose sum is σ = 181396800. Its totient is φ = 48698496.

The previous prime is 97900037. The next prime is 97900069. The reversal of 97900065 is 56000979.

It is not a de Polignac number, because 97900065 - 2⁹ = 97899553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97900069) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56431 + ... + 58139.

It is an arithmetic number, because the mean of its divisors is an integer number (3779100).

Almost surely, 2^97900065 is an apocalyptic number.

97900065 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

97900065 is a deficient number, since it is larger than the sum of its proper divisors (83496735).

97900065 is a wasteful number, since it uses less digits than its factorization.

97900065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806 (or 1803 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 97900065 is about 9894.4461694427. The cubic root of 97900065 is about 460.8868602761.

The spelling of 97900065 in words is "ninety-seven million, nine hundred thousand, sixty-five".