722823612 has 96 divisors (see below), whose sum is σ = 2148410880. Its totient is φ = 184135680.

The previous prime is 722823611. The next prime is 722823613. The reversal of 722823612 is 216328227.

It is an interprime number because it is at equal distance from previous prime (722823611) and next prime (722823613).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722823611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13812 + ... + 40452.

It is an arithmetic number, because the mean of its divisors is an integer number (22379280).

Almost surely, 2^722823612 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 722823612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1074205440).

722823612 is an abundant number, since it is smaller than the sum of its proper divisors (1425587268).

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

722823612 is a wasteful number, since it uses less digits than its factorization.

722823612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26691 (or 26689 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 722823612 is about 26885.3791492700. The cubic root of 722823612 is about 897.4510643886.

The spelling of 722823612 in words is "seven hundred twenty-two million, eight hundred twenty-three thousand, six hundred twelve".