426101639 has 2 divisors, whose sum is σ = 426101640. Its totient is φ = 426101638.

The previous prime is 426101587. The next prime is 426101677. The reversal of 426101639 is 936101624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 426101639 - 2²⁴ = 409324423 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426101699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213050819 + 213050820.

It is an arithmetic number, because the mean of its divisors is an integer number (213050820).

Almost surely, 2^426101639 is an apocalyptic number.

426101639 is a deficient number, since it is larger than the sum of its proper divisors (1).

426101639 is an equidigital number, since it uses as much as digits as its factorization.

426101639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 426101639 is about 20642.2295065238. The cubic root of 426101639 is about 752.4963566819.

The spelling of 426101639 in words is "four hundred twenty-six million, one hundred one thousand, six hundred thirty-nine".