975543985 has 16 divisors (see below), whose sum is σ = 1287530496. Its totient is φ = 705071808.

The previous prime is 975543977. The next prime is 975544001. The reversal of 975543985 is 589345579.

It is a cyclic number.

It is not a de Polignac number, because 975543985 - 2³ = 975543977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156609 + ... + 162718.

It is an arithmetic number, because the mean of its divisors is an integer number (80470656).

Almost surely, 2^975543985 is an apocalyptic number.

It is an amenable number.

975543985 is a deficient number, since it is larger than the sum of its proper divisors (311986511).

975543985 is a wasteful number, since it uses less digits than its factorization.

975543985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319392.

The product of its digits is 6804000, while the sum is 55.

The square root of 975543985 is about 31233.6995087037. The cubic root of 975543985 is about 991.7806219194.

The spelling of 975543985 in words is "nine hundred seventy-five million, five hundred forty-three thousand, nine hundred eighty-five".