722632879 has 4 divisors (see below), whose sum is σ = 726264400. Its totient is φ = 719001360.

The previous prime is 722632873. The next prime is 722632951. The reversal of 722632879 is 978236227.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 722632879 - 2⁷ = 722632751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722632873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1815462 + ... + 1815859.

It is an arithmetic number, because the mean of its divisors is an integer number (181566100).

Almost surely, 2^722632879 is an apocalyptic number.

722632879 is a deficient number, since it is larger than the sum of its proper divisors (3631521).

722632879 is a wasteful number, since it uses less digits than its factorization.

722632879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3631520.

The product of its digits is 508032, while the sum is 46.

The square root of 722632879 is about 26881.8317642232. The cubic root of 722632879 is about 897.3721200056.

The spelling of 722632879 in words is "seven hundred twenty-two million, six hundred thirty-two thousand, eight hundred seventy-nine".