716285021 has 16 divisors (see below), whose sum is σ = 801446400. Its totient is φ = 636649728.

The previous prime is 716284999. The next prime is 716285023. The reversal of 716285021 is 120582617.

716285021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 716285021 - 2¹⁸ = 716022877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716285023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19295 + ... + 42483.

It is an arithmetic number, because the mean of its divisors is an integer number (50090400).

Almost surely, 2^716285021 is an apocalyptic number.

It is an amenable number.

716285021 is a deficient number, since it is larger than the sum of its proper divisors (85161379).

716285021 is a wasteful number, since it uses less digits than its factorization.

716285021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23308.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 716285021 is about 26763.5016580417. The cubic root of 716285021 is about 894.7367789133.

The spelling of 716285021 in words is "seven hundred sixteen million, two hundred eighty-five thousand, twenty-one".