97971198 has 16 divisors (see below), whose sum is σ = 211015056. Its totient is φ = 30144960.

The previous prime is 97971197. The next prime is 97971241. The reversal of 97971198 is 89117979.

It is a self number, because there is not a number n which added to its sum of digits gives 97971198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97971197) 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, 627943 + ... + 628098.

It is an arithmetic number, because the mean of its divisors is an integer number (13188441).

Almost surely, 2^97971198 is an apocalyptic number.

97971198 is an abundant number, since it is smaller than the sum of its proper divisors (113043858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97971198 is a wasteful number, since it uses less digits than its factorization.

97971198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256059.

The product of its digits is 285768, while the sum is 51.

The square root of 97971198 is about 9898.0401090317. The cubic root of 97971198 is about 460.9984581864.

The spelling of 97971198 in words is "ninety-seven million, nine hundred seventy-one thousand, one hundred ninety-eight".