426545623 has 8 divisors (see below), whose sum is σ = 516156192. Its totient is φ = 344103936.

The previous prime is 426545617. The next prime is 426545641. The reversal of 426545623 is 326545624.

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

It is not a de Polignac number, because 426545623 - 2¹³ = 426537431 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 (426545653) 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, 1792090 + ... + 1792327.

It is an arithmetic number, because the mean of its divisors is an integer number (64519524).

Almost surely, 2^426545623 is an apocalyptic number.

426545623 is a deficient number, since it is larger than the sum of its proper divisors (89610569).

426545623 is a wasteful number, since it uses less digits than its factorization.

426545623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3584441.

The product of its digits is 172800, while the sum is 37.

The square root of 426545623 is about 20652.9809712787. The cubic root of 426545623 is about 752.7576248394.

Subtracting from 426545623 its reverse (326545624), we obtain a palindrome (99999999).

The spelling of 426545623 in words is "four hundred twenty-six million, five hundred forty-five thousand, six hundred twenty-three".