83907957 has 16 divisors (see below), whose sum is σ = 130273920. Its totient is φ = 47042112.

The previous prime is 83907953. The next prime is 83907959. The reversal of 83907957 is 75970938.

It is not a de Polignac number, because 83907957 - 2² = 83907953 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83907953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36582 + ... + 38807.

It is an arithmetic number, because the mean of its divisors is an integer number (8142120).

Almost surely, 2^83907957 is an apocalyptic number.

It is an amenable number.

83907957 is a deficient number, since it is larger than the sum of its proper divisors (46365963).

83907957 is a wasteful number, since it uses less digits than its factorization.

83907957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75452.

The product of its (nonzero) digits is 476280, while the sum is 48.

The square root of 83907957 is about 9160.1286563017. The cubic root of 83907957 is about 437.7918935905.

The spelling of 83907957 in words is "eighty-three million, nine hundred seven thousand, nine hundred fifty-seven".