716460721 has 16 divisors (see below), whose sum is σ = 768194560. Its totient is φ = 666247680.

The previous prime is 716460713. The next prime is 716460737. The reversal of 716460721 is 127064617.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 716460721 - 2³ = 716460713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (716460751) 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, 232531 + ... + 235591.

It is an arithmetic number, because the mean of its divisors is an integer number (48012160).

Almost surely, 2^716460721 is an apocalyptic number.

It is an amenable number.

716460721 is a deficient number, since it is larger than the sum of its proper divisors (51733839).

716460721 is a wasteful number, since it uses less digits than its factorization.

716460721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 716460721 is about 26766.7839121550. The cubic root of 716460721 is about 894.8099306129.

The spelling of 716460721 in words is "seven hundred sixteen million, four hundred sixty thousand, seven hundred twenty-one".