426227731 has 2 divisors, whose sum is σ = 426227732. Its totient is φ = 426227730.

The previous prime is 426227717. The next prime is 426227783. The reversal of 426227731 is 137722624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 426227731 - 2²⁵ = 392673299 is a prime.

It is a super-2 number, since 2×426227731² = 363340157346816722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (426227701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213113865 + 213113866.

It is an arithmetic number, because the mean of its divisors is an integer number (213113866).

Almost surely, 2^426227731 is an apocalyptic number.

426227731 is a deficient number, since it is larger than the sum of its proper divisors (1).

426227731 is an equidigital number, since it uses as much as digits as its factorization.

426227731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 34.

The square root of 426227731 is about 20645.2835049558. The cubic root of 426227731 is about 752.5705756038.

The spelling of 426227731 in words is "four hundred twenty-six million, two hundred twenty-seven thousand, seven hundred thirty-one".