426626873 has 2 divisors, whose sum is σ = 426626874. Its totient is φ = 426626872.

The previous prime is 426626843. The next prime is 426626881. The reversal of 426626873 is 378626624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 292136464 + 134490409 = 17092^2 + 11597^2 .

It is a cyclic number.

It is not a de Polignac number, because 426626873 - 2⁸ = 426626617 is a prime.

It is not a weakly prime, because it can be changed into another prime (426626833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213313436 + 213313437.

It is an arithmetic number, because the mean of its divisors is an integer number (213313437).

Almost surely, 2^426626873 is an apocalyptic number.

It is an amenable number.

426626873 is a deficient number, since it is larger than the sum of its proper divisors (1).

426626873 is an equidigital number, since it uses as much as digits as its factorization.

426626873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 44.

The square root of 426626873 is about 20654.9479060103. The cubic root of 426626873 is about 752.8054178309.

The spelling of 426626873 in words is "four hundred twenty-six million, six hundred twenty-six thousand, eight hundred seventy-three".