721362712 has 48 divisors (see below), whose sum is σ = 1579588560. Its totient is φ = 307935936.

The previous prime is 721362709. The next prime is 721362727. The reversal of 721362712 is 217263127.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99598 + ... + 106594.

It is an arithmetic number, because the mean of its divisors is an integer number (32908095).

Almost surely, 2^721362712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 721362712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (789794280).

721362712 is an abundant number, since it is smaller than the sum of its proper divisors (858225848).

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

721362712 is a wasteful number, since it uses less digits than its factorization.

721362712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7280 (or 7269 counting only the distinct ones).

The product of its digits is 7056, while the sum is 31.

The square root of 721362712 is about 26858.1963653556. The cubic root of 721362712 is about 896.8460433245.

The spelling of 721362712 in words is "seven hundred twenty-one million, three hundred sixty-two thousand, seven hundred twelve".