83878713 has 16 divisors (see below), whose sum is σ = 125549760. Its totient is φ = 55340928.

The previous prime is 83878703. The next prime is 83878733. The reversal of 83878713 is 31787838.

It is not a de Polignac number, because 83878713 - 2⁶ = 83878649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83878703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13395 + ... + 18632.

It is an arithmetic number, because the mean of its divisors is an integer number (7846860).

Almost surely, 2^83878713 is an apocalyptic number.

It is an amenable number.

83878713 is a deficient number, since it is larger than the sum of its proper divisors (41671047).

83878713 is a wasteful number, since it uses less digits than its factorization.

83878713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32133 (or 32127 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 83878713 is about 9158.5322514036. The cubic root of 83878713 is about 437.7410272434.

The spelling of 83878713 in words is "eighty-three million, eight hundred seventy-eight thousand, seven hundred thirteen".