84731975 has 6 divisors (see below), whose sum is σ = 105067680. Its totient is φ = 67785560.

The previous prime is 84731957. The next prime is 84731981. The reversal of 84731975 is 57913748.

It is not a de Polignac number, because 84731975 - 2⁸ = 84731719 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1694615 + ... + 1694664.

It is an arithmetic number, because the mean of its divisors is an integer number (17511280).

Almost surely, 2^84731975 is an apocalyptic number.

84731975 is a deficient number, since it is larger than the sum of its proper divisors (20335705).

84731975 is a wasteful number, since it uses less digits than its factorization.

84731975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3389289 (or 3389284 counting only the distinct ones).

The product of its digits is 211680, while the sum is 44.

The square root of 84731975 is about 9204.9972840843. The cubic root of 84731975 is about 439.2203393329.

The spelling of 84731975 in words is "eighty-four million, seven hundred thirty-one thousand, nine hundred seventy-five".