1334564779 has 2 divisors, whose sum is σ = 1334564780. Its totient is φ = 1334564778.

The previous prime is 1334564773. The next prime is 1334564783. The reversal of 1334564779 is 9774654331.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1334564779 - 2²¹ = 1332467627 is a prime.

It is not a weakly prime, because it can be changed into another prime (1334564773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 667282389 + 667282390.

It is an arithmetic number, because the mean of its divisors is an integer number (667282390).

Almost surely, 2^1334564779 is an apocalyptic number.

1334564779 is a deficient number, since it is larger than the sum of its proper divisors (1).

1334564779 is an equidigital number, since it uses as much as digits as its factorization.

1334564779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 49.

The square root of 1334564779 is about 36531.6955396270. The cubic root of 1334564779 is about 1100.9811573678.

The spelling of 1334564779 in words is "one billion, three hundred thirty-four million, five hundred sixty-four thousand, seven hundred seventy-nine".