97501640 has 32 divisors (see below), whose sum is σ = 224484480. Its totient is φ = 38092992.

The previous prime is 97501639. The next prime is 97501687. The reversal of 97501640 is 4610579.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 97501597 and 97501606.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26624 + ... + 30063.

It is an arithmetic number, because the mean of its divisors is an integer number (7015140).

Almost surely, 2^97501640 is an apocalyptic number.

It is an amenable number.

97501640 is an abundant number, since it is smaller than the sum of its proper divisors (126982840).

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

97501640 is a wasteful number, since it uses less digits than its factorization.

97501640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56741 (or 56737 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 97501640 is about 9874.2918733446. The cubic root of 97501640 is about 460.2607847043.

The spelling of 97501640 in words is "ninety-seven million, five hundred one thousand, six hundred forty".