97808018 has 24 divisors (see below), whose sum is σ = 186182064. Its totient is φ = 38106600.

The previous prime is 97808003. The next prime is 97808033. The reversal of 97808018 is 81080879.

It is an interprime number because it is at equal distance from previous prime (97808003) and next prime (97808033).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44288 + ... + 46443.

It is an arithmetic number, because the mean of its divisors is an integer number (7757586).

Almost surely, 2^97808018 is an apocalyptic number.

97808018 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

97808018 is a deficient number, since it is larger than the sum of its proper divisors (88374046).

97808018 is a wasteful number, since it uses less digits than its factorization.

97808018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90758 (or 90751 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 41.

The square root of 97808018 is about 9889.7936277761. The cubic root of 97808018 is about 460.7423709086.

The spelling of 97808018 in words is "ninety-seven million, eight hundred eight thousand, eighteen".