6390723364 has 9 divisors (see below), whose sum is σ = 11184045691. Its totient is φ = 3195281740.

The previous prime is 6390723349. The next prime is 6390723373. The reversal of 6390723364 is 4633270936.

The square root of 6390723364 is 79942.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6390723364.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 139899 + ... + 179869.

Almost surely, 2^6390723364 is an apocalyptic number.

6390723364 is the 79942-nd square number.

It is an amenable number.

6390723364 is a deficient number, since it is larger than the sum of its proper divisors (4793322327).

6390723364 is an frugal number, since it uses more digits than its factorization.

6390723364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79946 (or 39973 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 43.

The cubic root of 6390723364 is about 1855.7380511363.

The spelling of 6390723364 in words is "six billion, three hundred ninety million, seven hundred twenty-three thousand, three hundred sixty-four".