97808906 has 16 divisors (see below), whose sum is σ = 163097088. Its totient is φ = 43686000.

The previous prime is 97808899. The next prime is 97808917. The reversal of 97808906 is 60980879.

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, 59870 + ... + 61481.

It is an arithmetic number, because the mean of its divisors is an integer number (10193568).

Almost surely, 2^97808906 is an apocalyptic number.

97808906 is a deficient number, since it is larger than the sum of its proper divisors (65288182).

97808906 is a wasteful number, since it uses less digits than its factorization.

97808906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121397.

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 97808906 is about 9889.8385224431. The cubic root of 97808906 is about 460.7437652659.

The spelling of 97808906 in words is "ninety-seven million, eight hundred eight thousand, nine hundred six".