716015021 has 8 divisors (see below), whose sum is σ = 742319424. Its totient is φ = 690131680.

The previous prime is 716014991. The next prime is 716015023. The reversal of 716015021 is 120510617.

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

It is not a de Polignac number, because 716015021 - 2¹⁰ = 716013997 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 (716015023) 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, 101801 + ... + 108606.

It is an arithmetic number, because the mean of its divisors is an integer number (92789928).

Almost surely, 2^716015021 is an apocalyptic number.

It is an amenable number.

716015021 is a deficient number, since it is larger than the sum of its proper divisors (26304403).

716015021 is a wasteful number, since it uses less digits than its factorization.

716015021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210531.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 716015021 is about 26758.4569996104. The cubic root of 716015021 is about 894.6243426235.

Adding to 716015021 its reverse (120510617), we get a palindrome (836525638).

The spelling of 716015021 in words is "seven hundred sixteen million, fifteen thousand, twenty-one".