1065434879 has 2 divisors, whose sum is σ = 1065434880. Its totient is φ = 1065434878.

The previous prime is 1065434873. The next prime is 1065434893. The reversal of 1065434879 is 9784345601.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1065434879 is a prime.

It is a super-2 number, since 2×1065434879² = 2270302962779489282, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1065434873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532717439 + 532717440.

It is an arithmetic number, because the mean of its divisors is an integer number (532717440).

Almost surely, 2^1065434879 is an apocalyptic number.

1065434879 is a deficient number, since it is larger than the sum of its proper divisors (1).

1065434879 is an equidigital number, since it uses as much as digits as its factorization.

1065434879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 1065434879 is about 32640.9999693637. Note that the first 4 decimals coincide. The cubic root of 1065434879 is about 1021.3524539866.

The spelling of 1065434879 in words is "one billion, sixty-five million, four hundred thirty-four thousand, eight hundred seventy-nine".