975497640 has 64 divisors (see below), whose sum is σ = 3151612800. Its totient is φ = 240122112.

The previous prime is 975497629. The next prime is 975497641. The reversal of 975497640 is 46794579.

It is not an unprimeable number, because it can be changed into a prime (975497641) 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, 311100 + ... + 314219.

It is an arithmetic number, because the mean of its divisors is an integer number (49243950).

Almost surely, 2^975497640 is an apocalyptic number.

It is an amenable number.

975497640 is an abundant number, since it is smaller than the sum of its proper divisors (2176115160).

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

975497640 is a wasteful number, since it uses less digits than its factorization.

975497640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625346 (or 625342 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 51.

The square root of 975497640 is about 31232.9575929018. The cubic root of 975497640 is about 991.7649162203.

The spelling of 975497640 in words is "nine hundred seventy-five million, four hundred ninety-seven thousand, six hundred forty".