426377767 has 2 divisors, whose sum is σ = 426377768. Its totient is φ = 426377766.

The previous prime is 426377747. The next prime is 426377771. The reversal of 426377767 is 767773624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 426377767 - 2⁷ = 426377639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 426377767.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426377747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213188883 + 213188884.

It is an arithmetic number, because the mean of its divisors is an integer number (213188884).

Almost surely, 2^426377767 is an apocalyptic number.

426377767 is a deficient number, since it is larger than the sum of its proper divisors (1).

426377767 is an equidigital number, since it uses as much as digits as its factorization.

426377767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2074464, while the sum is 49.

The square root of 426377767 is about 20648.9168481061. The cubic root of 426377767 is about 752.6588691180.

The spelling of 426377767 in words is "four hundred twenty-six million, three hundred seventy-seven thousand, seven hundred sixty-seven".