83739568 has 20 divisors (see below), whose sum is σ = 176995368. Its totient is φ = 38063360.

The previous prime is 83739553. The next prime is 83739581. The reversal of 83739568 is 86593738.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237721 + ... + 238072.

Almost surely, 2^83739568 is an apocalyptic number.

83739568 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

83739568 is an abundant number, since it is smaller than the sum of its proper divisors (93255800).

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

83739568 is a wasteful number, since it uses less digits than its factorization.

83739568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475812 (or 475806 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 49.

The square root of 83739568 is about 9150.9326300656. The cubic root of 83739568 is about 437.4988395071.

The spelling of 83739568 in words is "eighty-three million, seven hundred thirty-nine thousand, five hundred sixty-eight".