84792561 has 8 divisors (see below), whose sum is σ = 129207744. Its totient is φ = 48452880.

The previous prime is 84792541. The next prime is 84792571. The reversal of 84792561 is 16529748.

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

It is not a de Polignac number, because 84792561 - 2⁵ = 84792529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84792541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2018850 + ... + 2018891.

It is an arithmetic number, because the mean of its divisors is an integer number (16150968).

Almost surely, 2^84792561 is an apocalyptic number.

It is an amenable number.

84792561 is a deficient number, since it is larger than the sum of its proper divisors (44415183).

84792561 is a wasteful number, since it uses less digits than its factorization.

84792561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4037751.

The product of its digits is 120960, while the sum is 42.

The square root of 84792561 is about 9208.2876258292. The cubic root of 84792561 is about 439.3249997972.

The spelling of 84792561 in words is "eighty-four million, seven hundred ninety-two thousand, five hundred sixty-one".