198860697 has 32 divisors (see below), whose sum is σ = 337478400. Its totient is φ = 113370624.

The previous prime is 198860663. The next prime is 198860699. The reversal of 198860697 is 796068891.

It is not a de Polignac number, because 198860697 - 2⁶ = 198860633 is a prime.

It is a super-2 number, since 2×198860697² = 79091153622651618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (198860699) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104329 + ... + 106217.

It is an arithmetic number, because the mean of its divisors is an integer number (10546200).

Almost surely, 2^198860697 is an apocalyptic number.

It is an amenable number.

198860697 is a deficient number, since it is larger than the sum of its proper divisors (138617703).

198860697 is a wasteful number, since it uses less digits than its factorization.

198860697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462 (or 2456 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 198860697 is about 14101.7976513635. The cubic root of 198860697 is about 583.6909849903.

The spelling of 198860697 in words is "one hundred ninety-eight million, eight hundred sixty thousand, six hundred ninety-seven".