722323403 has 4 divisors (see below), whose sum is σ = 722385168. Its totient is φ = 722261640.

The previous prime is 722323391. The next prime is 722323409. The reversal of 722323403 is 304323227.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 304323227 = 13 ⋅23409479.

It is a cyclic number.

It is not a de Polignac number, because 722323403 - 2⁶ = 722323339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722323409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7376 + ... + 38717.

It is an arithmetic number, because the mean of its divisors is an integer number (180596292).

Almost surely, 2^722323403 is an apocalyptic number.

722323403 is a deficient number, since it is larger than the sum of its proper divisors (61765).

722323403 is a wasteful number, since it uses less digits than its factorization.

722323403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61764.

The product of its (nonzero) digits is 6048, while the sum is 26.

The square root of 722323403 is about 26876.0749180382. The cubic root of 722323403 is about 897.2439983380.

The spelling of 722323403 in words is "seven hundred twenty-two million, three hundred twenty-three thousand, four hundred three".