83908539 has 36 divisors (see below), whose sum is σ = 143493168. Its totient is φ = 46933920.

The previous prime is 83908529. The next prime is 83908543. The reversal of 83908539 is 93580938.

It is not a de Polignac number, because 83908539 - 2⁷ = 83908411 is a prime.

It is a super-2 number, since 2×83908539² = 14081285834229042, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83908494 and 83908503.

It is not an unprimeable number, because it can be changed into a prime (83908529) 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 35 ways as a sum of consecutive naturals, for example, 11194 + ... + 17120.

Almost surely, 2^83908539 is an apocalyptic number.

83908539 is a deficient number, since it is larger than the sum of its proper divisors (59584629).

83908539 is a wasteful number, since it uses less digits than its factorization.

83908539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5968 (or 5954 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 83908539 is about 9160.1604243594. The cubic root of 83908539 is about 437.7929057881.

The spelling of 83908539 in words is "eighty-three million, nine hundred eight thousand, five hundred thirty-nine".