97147500 has 60 divisors (see below), whose sum is σ = 283278072. Its totient is φ = 25904000.

The previous prime is 97147499. The next prime is 97147541. The reversal of 97147500 is 574179.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-3 number, since 3×97147500³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1024 + ... + 13976.

Almost surely, 2^97147500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97147500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141639036).

97147500 is an abundant number, since it is smaller than the sum of its proper divisors (186130572).

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

97147500 is a wasteful number, since it uses less digits than its factorization.

97147500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12980 (or 12963 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 97147500 is about 9856.3431352607. The cubic root of 97147500 is about 459.7028641879.

The spelling of 97147500 in words is "ninety-seven million, one hundred forty-seven thousand, five hundred".