426925691 has 4 divisors (see below), whose sum is σ = 427424712. Its totient is φ = 426426672.

The previous prime is 426925669. The next prime is 426925699. The reversal of 426925691 is 196529624.

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 426925691 - 2²⁶ = 359816827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426925699) 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, 248225 + ... + 249938.

It is an arithmetic number, because the mean of its divisors is an integer number (106856178).

Almost surely, 2^426925691 is an apocalyptic number.

426925691 is a deficient number, since it is larger than the sum of its proper divisors (499021).

426925691 is an equidigital number, since it uses as much as digits as its factorization.

426925691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499020.

The product of its digits is 233280, while the sum is 44.

The square root of 426925691 is about 20662.1802092616. The cubic root of 426925691 is about 752.9811368051.

The spelling of 426925691 in words is "four hundred twenty-six million, nine hundred twenty-five thousand, six hundred ninety-one".