97749970 has 16 divisors (see below), whose sum is σ = 176787648. Its totient is φ = 38913840.

The previous prime is 97749947. The next prime is 97749991. The reversal of 97749970 is 7994779.

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, 21054 + ... + 25273.

It is an arithmetic number, because the mean of its divisors is an integer number (11049228).

Almost surely, 2^97749970 is an apocalyptic number.

97749970 is a deficient number, since it is larger than the sum of its proper divisors (79037678).

97749970 is a wasteful number, since it uses less digits than its factorization.

97749970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46545.

The product of its (nonzero) digits is 1000188, while the sum is 52.

The square root of 97749970 is about 9886.8584494773. The cubic root of 97749970 is about 460.6512043341.

The spelling of 97749970 in words is "ninety-seven million, seven hundred forty-nine thousand, nine hundred seventy".