80724590 has 16 divisors (see below), whose sum is σ = 145409040. Its totient is φ = 32266560.

The previous prime is 80724583. The next prime is 80724607. The reversal of 80724590 is 9542708.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 80724590.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21041 + ... + 24579.

It is an arithmetic number, because the mean of its divisors is an integer number (9088065).

Almost surely, 2^80724590 is an apocalyptic number.

80724590 is a deficient number, since it is larger than the sum of its proper divisors (64684450).

80724590 is a wasteful number, since it uses less digits than its factorization.

80724590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5827.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 80724590 is about 8984.6864163420. The cubic root of 80724590 is about 432.1839315933.

The spelling of 80724590 in words is "eighty million, seven hundred twenty-four thousand, five hundred ninety".