722799 has 36 divisors (see below), whose sum is σ = 1333800. Its totient is φ = 372960.

The previous prime is 722797. The next prime is 722807. The reversal of 722799 is 997227.

It is not a de Polignac number, because 722799 - 2¹ = 722797 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

722799 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722791) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4777 + ... + 4925.

It is an arithmetic number, because the mean of its divisors is an integer number (37050).

2⁷²²⁷⁹⁹ is an apocalyptic number.

722799 is a deficient number, since it is larger than the sum of its proper divisors (611001).

722799 is a wasteful number, since it uses less digits than its factorization.

722799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 170 counting only the distinct ones).

The product of its digits is 15876, while the sum is 36.

The square root of 722799 is about 850.1758641599. The cubic root of 722799 is about 89.7440878263.

It can be divided in two parts, 722 and 799, that added together give a square (1521 = 39²).

The spelling of 722799 in words is "seven hundred twenty-two thousand, seven hundred ninety-nine".