83959937 has 4 divisors (see below), whose sum is σ = 84059220. Its totient is φ = 83860656.

The previous prime is 83959921. The next prime is 83959943. The reversal of 83959937 is 73995938.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73995938 = 2 ⋅36997969.

It can be written as a sum of positive squares in 2 ways, for example, as 29333056 + 54626881 = 5416^2 + 7391^2 .

It is a cyclic number.

It is not a de Polignac number, because 83959937 - 2⁴ = 83959921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83959237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48362 + ... + 50067.

It is an arithmetic number, because the mean of its divisors is an integer number (21014805).

Almost surely, 2^83959937 is an apocalyptic number.

It is an amenable number.

83959937 is a deficient number, since it is larger than the sum of its proper divisors (99283).

83959937 is an equidigital number, since it uses as much as digits as its factorization.

83959937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99282.

The product of its digits is 1837080, while the sum is 53.

The square root of 83959937 is about 9162.9655134132. The cubic root of 83959937 is about 437.8822772520.

The spelling of 83959937 in words is "eighty-three million, nine hundred fifty-nine thousand, nine hundred thirty-seven".