97570000 has 100 divisors (see below), whose sum is σ = 257992416. Its totient is φ = 35440000.

The previous prime is 97569991. The next prime is 97570003. The reversal of 97570000 is 7579.

It is a tau number, because it is divible by the number of its divisors (100).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97570003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 109557 + ... + 110443.

Almost surely, 2^97570000 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 97570000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128996208).

97570000 is an abundant number, since it is smaller than the sum of its proper divisors (160422416).

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

97570000 is a wasteful number, since it uses less digits than its factorization.

97570000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926 (or 905 counting only the distinct ones).

The product of its (nonzero) digits is 2205, while the sum is 28.

The square root of 97570000 is about 9877.7527808708. The cubic root of 97570000 is about 460.3683250388.

Adding to 97570000 its reverse (7579), we get a palindrome (97577579).

The spelling of 97570000 in words is "ninety-seven million, five hundred seventy thousand".