97985870 has 16 divisors (see below), whose sum is σ = 179703360. Its totient is φ = 38454624.

The previous prime is 97985851. The next prime is 97985887. The reversal of 97985870 is 7858979.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91910 + ... + 92969.

It is an arithmetic number, because the mean of its divisors is an integer number (11231460).

Almost surely, 2^97985870 is an apocalyptic number.

97985870 is a deficient number, since it is larger than the sum of its proper divisors (81717490).

97985870 is a wasteful number, since it uses less digits than its factorization.

97985870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184939.

The product of its (nonzero) digits is 1270080, while the sum is 53.

The square root of 97985870 is about 9898.7812381121. The cubic root of 97985870 is about 461.0214698194.

The spelling of 97985870 in words is "ninety-seven million, nine hundred eighty-five thousand, eight hundred seventy".