80561724 has 48 divisors (see below), whose sum is σ = 192550176. Its totient is φ = 26208000.

The previous prime is 80561711. The next prime is 80561779. The reversal of 80561724 is 42716508.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

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 15 ways as a sum of consecutive naturals, for example, 114574 + ... + 115274.

It is an arithmetic number, because the mean of its divisors is an integer number (4011462).

Almost surely, 2^80561724 is an apocalyptic number.

It is an amenable number.

80561724 is an abundant number, since it is smaller than the sum of its proper divisors (111988452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80561724 is a wasteful number, since it uses less digits than its factorization.

80561724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926 (or 924 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 80561724 is about 8975.6183073925. The cubic root of 80561724 is about 431.8930848244.

The spelling of 80561724 in words is "eighty million, five hundred sixty-one thousand, seven hundred twenty-four".