722302823 has 4 divisors (see below), whose sum is σ = 787966728. Its totient is φ = 656638920.

The previous prime is 722302799. The next prime is 722302831. The reversal of 722302823 is 328203227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 328203227 = 11 ⋅29836657.

It is a cyclic number.

It is not a de Polignac number, because 722302823 - 2¹⁰ = 722301799 is a prime.

It is a super-2 number, since 2×722302823² = 1043442736227538658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722302843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32831936 + ... + 32831957.

It is an arithmetic number, because the mean of its divisors is an integer number (196991682).

Almost surely, 2^722302823 is an apocalyptic number.

722302823 is a deficient number, since it is larger than the sum of its proper divisors (65663905).

722302823 is a wasteful number, since it uses less digits than its factorization.

722302823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65663904.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 722302823 is about 26875.6920469036. The cubic root of 722302823 is about 897.2354770133.

The spelling of 722302823 in words is "seven hundred twenty-two million, three hundred two thousand, eight hundred twenty-three".