97678198 has 16 divisors (see below), whose sum is σ = 150345360. Its totient is φ = 47569536.

The previous prime is 97678193. The next prime is 97678199. The reversal of 97678198 is 89187679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97678193) 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, 33786 + ... + 36562.

It is an arithmetic number, because the mean of its divisors is an integer number (9396585).

Almost surely, 2^97678198 is an apocalyptic number.

97678198 is a deficient number, since it is larger than the sum of its proper divisors (52667162).

97678198 is a wasteful number, since it uses less digits than its factorization.

97678198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3231.

The product of its digits is 1524096, while the sum is 55.

The square root of 97678198 is about 9883.2281163596. The cubic root of 97678198 is about 460.5384337851.

The spelling of 97678198 in words is "ninety-seven million, six hundred seventy-eight thousand, one hundred ninety-eight".