722888670 has 96 divisors (see below), whose sum is σ = 2061324288. Its totient is φ = 161700672.

The previous prime is 722888657. The next prime is 722888707. The reversal of 722888670 is 76888227.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 63859 + ... + 74321.

It is an arithmetic number, because the mean of its divisors is an integer number (21472128).

Almost surely, 2^722888670 is an apocalyptic number.

722888670 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 722888670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1030662144).

722888670 is an abundant number, since it is smaller than the sum of its proper divisors (1338435618).

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

722888670 is a wasteful number, since it uses less digits than its factorization.

722888670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10534 (or 10527 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 48.

The square root of 722888670 is about 26886.5890361719. The cubic root of 722888670 is about 897.4779887164.

The spelling of 722888670 in words is "seven hundred twenty-two million, eight hundred eighty-eight thousand, six hundred seventy".