83639152 has 20 divisors (see below), whose sum is σ = 163330816. Its totient is φ = 41489280.

The previous prime is 83639131. The next prime is 83639173. The reversal of 83639152 is 25193638.

It is an interprime number because it is at equal distance from previous prime (83639131) and next prime (83639173).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18549 + ... + 22612.

Almost surely, 2^83639152 is an apocalyptic number.

It is an amenable number.

83639152 is a deficient number, since it is larger than the sum of its proper divisors (79691664).

83639152 is a wasteful number, since it uses less digits than its factorization.

83639152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41296 (or 41290 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

The square root of 83639152 is about 9145.4443303756. Note that the first 3 decimals coincide. The cubic root of 83639152 is about 437.3238945101.

The spelling of 83639152 in words is "eighty-three million, six hundred thirty-nine thousand, one hundred fifty-two".