426931 has 2 divisors, whose sum is σ = 426932. Its totient is φ = 426930.

The previous prime is 426919. The next prime is 426941. The reversal of 426931 is 139624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 426931 - 2¹³ = 418739 is a prime.

It is a super-2 number, since 2×426931² = 364540157522, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4⁹ + 2⁵ + 9⁵ + 6⁶ + 3¹⁰ + 1 .

It is a junction number, because it is equal to n+sod(n) for n = 426896 and 426905.

It is not a weakly prime, because it can be changed into another prime (426941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213465 + 213466.

It is an arithmetic number, because the mean of its divisors is an integer number (213466).

2⁴²⁶⁹³¹ is an apocalyptic number.

426931 is a deficient number, since it is larger than the sum of its proper divisors (1).

426931 is an equidigital number, since it uses as much as digits as its factorization.

426931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 25.

The square root of 426931 is about 653.3995714722. The cubic root of 426931 is about 75.2984258004.

The spelling of 426931 in words is "four hundred twenty-six thousand, nine hundred thirty-one".