97732198 has 16 divisors (see below), whose sum is σ = 153868896. Its totient is φ = 46467520.

The previous prime is 97732189. The next prime is 97732199. The reversal of 97732198 is 89123779.

It is a happy number.

It is a super-2 number, since 2×97732198² = 19103165051822408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97732199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1818 + ... + 14098.

It is an arithmetic number, because the mean of its divisors is an integer number (9616806).

Almost surely, 2^97732198 is an apocalyptic number.

97732198 is a deficient number, since it is larger than the sum of its proper divisors (56136698).

97732198 is a wasteful number, since it uses less digits than its factorization.

97732198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12479.

The product of its digits is 190512, while the sum is 46.

The square root of 97732198 is about 9885.9596398124. The cubic root of 97732198 is about 460.6232855211.

The spelling of 97732198 in words is "ninety-seven million, seven hundred thirty-two thousand, one hundred ninety-eight".