426813623 has 4 divisors (see below), whose sum is σ = 427739928. Its totient is φ = 425887320.

The previous prime is 426813617. The next prime is 426813631. The reversal of 426813623 is 326318624.

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 426813623 - 2⁶ = 426813559 is a prime.

It is a super-2 number, since 2×426813623² = 364339737556772258, 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 (426813613) 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, 462461 + ... + 463382.

It is an arithmetic number, because the mean of its divisors is an integer number (106934982).

Almost surely, 2^426813623 is an apocalyptic number.

426813623 is a deficient number, since it is larger than the sum of its proper divisors (926305).

426813623 is an equidigital number, since it uses as much as digits as its factorization.

426813623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926304.

The product of its digits is 41472, while the sum is 35.

The square root of 426813623 is about 20659.4681199686. The cubic root of 426813623 is about 752.9152451862.

The spelling of 426813623 in words is "four hundred twenty-six million, eight hundred thirteen thousand, six hundred twenty-three".