813924023 has 8 divisors (see below), whose sum is σ = 926522496. Its totient is φ = 707759800.

The previous prime is 813924019. The next prime is 813924029. The reversal of 813924023 is 320429318.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 813924023 - 2² = 813924019 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 (813924029) 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 7 ways as a sum of consecutive naturals, for example, 1608293 + ... + 1608798.

It is an arithmetic number, because the mean of its divisors is an integer number (115815312).

Almost surely, 2^813924023 is an apocalyptic number.

813924023 is a deficient number, since it is larger than the sum of its proper divisors (112598473).

813924023 is a wasteful number, since it uses less digits than its factorization.

813924023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3217125.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 813924023 is about 28529.3537080671. The cubic root of 813924023 is about 933.6726178759.

The spelling of 813924023 in words is "eight hundred thirteen million, nine hundred twenty-four thousand, twenty-three".