721468023 has 4 divisors (see below), whose sum is σ = 961957368. Its totient is φ = 480978680.

The previous prime is 721468009. The next prime is 721468039. The reversal of 721468023 is 320864127.

721468023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 721468023 - 2¹² = 721463927 is a prime.

It is a super-2 number, since 2×721468023² = 1041032216423057058, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (721468043) 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, 120244668 + ... + 120244673.

It is an arithmetic number, because the mean of its divisors is an integer number (240489342).

Almost surely, 2^721468023 is an apocalyptic number.

721468023 is a deficient number, since it is larger than the sum of its proper divisors (240489345).

721468023 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 11 representation: 721468023 = (340282671)₁₁.

721468023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240489344.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 721468023 is about 26860.1567940323. The cubic root of 721468023 is about 896.8896844112.

The spelling of 721468023 in words is "seven hundred twenty-one million, four hundred sixty-eight thousand, twenty-three".