716438646 has 48 divisors (see below), whose sum is σ = 1935318528. Its totient is φ = 186087600.

The previous prime is 716438629. The next prime is 716438687. The reversal of 716438646 is 646834617.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 257070 + ... + 259841.

It is an arithmetic number, because the mean of its divisors is an integer number (40319136).

Almost surely, 2^716438646 is an apocalyptic number.

716438646 is an abundant number, since it is smaller than the sum of its proper divisors (1218879882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

716438646 is a wasteful number, since it uses less digits than its factorization.

716438646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516937 (or 516934 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 716438646 is about 26766.3715508845. The cubic root of 716438646 is about 894.8007404687.

The spelling of 716438646 in words is "seven hundred sixteen million, four hundred thirty-eight thousand, six hundred forty-six".