97164890 has 16 divisors (see below), whose sum is σ = 175016808. Its totient is φ = 38839296.

The previous prime is 97164883. The next prime is 97164913. The reversal of 97164890 is 9846179.

It can be written as a sum of positive squares in 4 ways, for example, as 19918369 + 77246521 = 4463^2 + 8789^2 .

It is a Curzon 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, 19274 + ... + 23786.

Almost surely, 2^97164890 is an apocalyptic number.

97164890 is a deficient number, since it is larger than the sum of its proper divisors (77851918).

97164890 is a wasteful number, since it uses less digits than its factorization.

97164890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6673.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 97164890 is about 9857.2252688066. The cubic root of 97164890 is about 459.7302924313.

The spelling of 97164890 in words is "ninety-seven million, one hundred sixty-four thousand, eight hundred ninety".