97678916 has 12 divisors (see below), whose sum is σ = 171168060. Its totient is φ = 48773760.

The previous prime is 97678901. The next prime is 97678921. The reversal of 97678916 is 61987679.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 577600 + 97101316 = 760^2 + 9854^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13001 + ... + 19088.

It is an arithmetic number, because the mean of its divisors is an integer number (14264005).

Almost surely, 2^97678916 is an apocalyptic number.

It is an amenable number.

97678916 is a deficient number, since it is larger than the sum of its proper divisors (73489144).

97678916 is a wasteful number, since it uses less digits than its factorization.

97678916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32854 (or 32852 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 53.

The square root of 97678916 is about 9883.2644404569. The cubic root of 97678916 is about 460.5395622041.

The spelling of 97678916 in words is "ninety-seven million, six hundred seventy-eight thousand, nine hundred sixteen".