97540198 has 32 divisors (see below), whose sum is σ = 173352960. Its totient is φ = 40279680.

The previous prime is 97540187. The next prime is 97540199. The reversal of 97540198 is 89104579.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97540199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164190 + ... + 164782.

It is an arithmetic number, because the mean of its divisors is an integer number (5417280).

Almost surely, 2^97540198 is an apocalyptic number.

97540198 is a deficient number, since it is larger than the sum of its proper divisors (75812762).

97540198 is a wasteful number, since it uses less digits than its factorization.

97540198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 97540198 is about 9876.2441241598. The cubic root of 97540198 is about 460.3214482873.

The spelling of 97540198 in words is "ninety-seven million, five hundred forty thousand, one hundred ninety-eight".