426563623 has 8 divisors (see below), whose sum is σ = 451526400. Its totient is φ = 401852088.

The previous prime is 426563603. The next prime is 426563633. The reversal of 426563623 is 326365624.

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

It is a cyclic number.

It is not a de Polignac number, because 426563623 - 2²⁵ = 393009191 is a prime.

It is a super-2 number, since 2×426563623² = 363913048933772258, 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 (426563603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59311 + ... + 66112.

It is an arithmetic number, because the mean of its divisors is an integer number (56440800).

Almost surely, 2^426563623 is an apocalyptic number.

426563623 is a deficient number, since it is larger than the sum of its proper divisors (24962777).

426563623 is a wasteful number, since it uses less digits than its factorization.

426563623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125621.

The product of its digits is 155520, while the sum is 37.

The square root of 426563623 is about 20653.4167391258. The cubic root of 426563623 is about 752.7682133485.

The spelling of 426563623 in words is "four hundred twenty-six million, five hundred sixty-three thousand, six hundred twenty-three".