83138834 has 8 divisors (see below), whose sum is σ = 124773168. Its totient is φ = 41547780.

The previous prime is 83138801. The next prime is 83138843. The reversal of 83138834 is 43883138.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 5492 + ... + 14015.

It is an arithmetic number, because the mean of its divisors is an integer number (15596646).

Almost surely, 2^83138834 is an apocalyptic number.

83138834 is a deficient number, since it is larger than the sum of its proper divisors (41634334).

83138834 is a wasteful number, since it uses less digits than its factorization.

83138834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21640.

The product of its digits is 55296, while the sum is 38.

The square root of 83138834 is about 9118.0499011576. The cubic root of 83138834 is about 436.4501460085.

The spelling of 83138834 in words is "eighty-three million, one hundred thirty-eight thousand, eight hundred thirty-four".