83634939 has 6 divisors (see below), whose sum is σ = 120806036. Its totient is φ = 55756620.

The previous prime is 83634907. The next prime is 83634959. The reversal of 83634939 is 93943638.

83634939 is a `hidden beast` number, since 8 + 3 + 634 + 9 + 3 + 9 = 666.

It is not a de Polignac number, because 83634939 - 2⁵ = 83634907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83634894 and 83634903.

It is not an unprimeable number, because it can be changed into a prime (83634959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4646377 + ... + 4646394.

Almost surely, 2^83634939 is an apocalyptic number.

83634939 is a deficient number, since it is larger than the sum of its proper divisors (37171097).

83634939 is a wasteful number, since it uses less digits than its factorization.

83634939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9292777 (or 9292774 counting only the distinct ones).

The product of its digits is 419904, while the sum is 45.

The square root of 83634939 is about 9145.2139942158. The cubic root of 83634939 is about 437.3165515514.

The spelling of 83634939 in words is "eighty-three million, six hundred thirty-four thousand, nine hundred thirty-nine".