975499897 has 16 divisors (see below), whose sum is σ = 1034449920. Its totient is φ = 918035712.

The previous prime is 975499891. The next prime is 975499963. The reversal of 975499897 is 798994579.

It is not a de Polignac number, because 975499897 - 2¹⁹ = 974975609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (975499891) 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, 455413 + ... + 457549.

It is an arithmetic number, because the mean of its divisors is an integer number (64653120).

Almost surely, 2^975499897 is an apocalyptic number.

It is an amenable number.

975499897 is a deficient number, since it is larger than the sum of its proper divisors (58950023).

975499897 is a wasteful number, since it uses less digits than its factorization.

975499897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472.

The product of its digits is 51438240, while the sum is 67.

The square root of 975499897 is about 31232.9937245855. The cubic root of 975499897 is about 991.7656810988.

The spelling of 975499897 in words is "nine hundred seventy-five million, four hundred ninety-nine thousand, eight hundred ninety-seven".