83297688 has 32 divisors (see below), whose sum is σ = 220494960. Its totient is φ = 26132480.

The previous prime is 83297647. The next prime is 83297689. The reversal of 83297688 is 88679238.

It is a super-2 number, since 2×83297688² = 13877009652290688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 83297688.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83297689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101673 + ... + 102488.

Almost surely, 2^83297688 is an apocalyptic number.

It is an amenable number.

83297688 is an abundant number, since it is smaller than the sum of its proper divisors (137197272).

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

83297688 is a wasteful number, since it uses less digits than its factorization.

83297688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204187 (or 204183 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 51.

The square root of 83297688 is about 9126.7567076153. The cubic root of 83297688 is about 436.7279453526.

The spelling of 83297688 in words is "eighty-three million, two hundred ninety-seven thousand, six hundred eighty-eight".