83979037 has 2 divisors, whose sum is σ = 83979038. Its totient is φ = 83979036.

The previous prime is 83979023. The next prime is 83979047. The reversal of 83979037 is 73097938.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83429956 + 549081 = 9134^2 + 741^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83979037 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83979017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41989518 + 41989519.

It is an arithmetic number, because the mean of its divisors is an integer number (41989519).

Almost surely, 2^83979037 is an apocalyptic number.

It is an amenable number.

83979037 is a deficient number, since it is larger than the sum of its proper divisors (1).

83979037 is an equidigital number, since it uses as much as digits as its factorization.

83979037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 83979037 is about 9164.0076931439. The cubic root of 83979037 is about 437.9154792674.

The spelling of 83979037 in words is "eighty-three million, nine hundred seventy-nine thousand, thirty-seven".