83974775 has 12 divisors (see below), whose sum is σ = 109609800. Its totient is φ = 63643680.

The previous prime is 83974757. The next prime is 83974783. The reversal of 83974775 is 57747938.

It is not a de Polignac number, because 83974775 - 2⁶ = 83974711 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87920 + ... + 88869.

It is an arithmetic number, because the mean of its divisors is an integer number (9134150).

Almost surely, 2^83974775 is an apocalyptic number.

83974775 is a deficient number, since it is larger than the sum of its proper divisors (25635025).

83974775 is a wasteful number, since it uses less digits than its factorization.

83974775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176818 (or 176813 counting only the distinct ones).

The product of its digits is 1481760, while the sum is 50.

The square root of 83974775 is about 9163.7751500132. The cubic root of 83974775 is about 437.9080709608.

The spelling of 83974775 in words is "eighty-three million, nine hundred seventy-four thousand, seven hundred seventy-five".