83664275 has 12 divisors (see below), whose sum is σ = 107322000. Its totient is φ = 64622880.

The previous prime is 83664247. The next prime is 83664299. The reversal of 83664275 is 57246638.

It is a happy number.

It is not a de Polignac number, because 83664275 - 2⁶ = 83664211 is a prime.

It is a super-2 number, since 2×83664275² = 13999421822551250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56975 + ... + 58424.

It is an arithmetic number, because the mean of its divisors is an integer number (8943500).

Almost surely, 2^83664275 is an apocalyptic number.

83664275 is a deficient number, since it is larger than the sum of its proper divisors (23657725).

83664275 is a wasteful number, since it uses less digits than its factorization.

83664275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115438 (or 115433 counting only the distinct ones).

The product of its digits is 241920, while the sum is 41.

The square root of 83664275 is about 9146.8177526394. The cubic root of 83664275 is about 437.3676769894.

The spelling of 83664275 in words is "eighty-three million, six hundred sixty-four thousand, two hundred seventy-five".