426782969 has 2 divisors, whose sum is σ = 426782970. Its totient is φ = 426782968.

The previous prime is 426782957. The next prime is 426783047. The reversal of 426782969 is 969287624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 423824569 + 2958400 = 20587^2 + 1720^2 .

It is a cyclic number.

It is not a de Polignac number, because 426782969 - 2⁴ = 426782953 is a prime.

It is a super-2 number, since 2×426782969² = 364287405256909922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 426782969.

It is not a weakly prime, because it can be changed into another prime (426722969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213391484 + 213391485.

It is an arithmetic number, because the mean of its divisors is an integer number (213391485).

Almost surely, 2^426782969 is an apocalyptic number.

It is an amenable number.

426782969 is a deficient number, since it is larger than the sum of its proper divisors (1).

426782969 is an equidigital number, since it uses as much as digits as its factorization.

426782969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 53.

The square root of 426782969 is about 20658.7262192034. The cubic root of 426782969 is about 752.8972198193.

The spelling of 426782969 in words is "four hundred twenty-six million, seven hundred eighty-two thousand, nine hundred sixty-nine".