83975697 has 28 divisors (see below), whose sum is σ = 135606324. Its totient is φ = 51671520.

The previous prime is 83975659. The next prime is 83975701. The reversal of 83975697 is 79657938.

It can be written as a sum of positive squares in 2 ways, for example, as 53934336 + 30041361 = 7344^2 + 5481^2 .

It is not a de Polignac number, because 83975697 - 2¹⁰ = 83974673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83975627) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 5047 + ... + 13907.

It is an arithmetic number, because the mean of its divisors is an integer number (4843083).

Almost surely, 2^83975697 is an apocalyptic number.

It is an amenable number.

83975697 is a deficient number, since it is larger than the sum of its proper divisors (51630627).

83975697 is an equidigital number, since it uses as much as digits as its factorization.

83975697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8892 (or 8877 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 83975697 is about 9163.8254566529. The cubic root of 83975697 is about 437.9096736237.

The spelling of 83975697 in words is "eighty-three million, nine hundred seventy-five thousand, six hundred ninety-seven".