1069064639 has 2 divisors, whose sum is σ = 1069064640. Its totient is φ = 1069064638.

The previous prime is 1069064609. The next prime is 1069064681. The reversal of 1069064639 is 9364609601.

It is a weak prime.

It is an emirp because it is prime and its reverse (9364609601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1069064639 - 2¹⁶ = 1068999103 is a prime.

It is a super-2 number, since 2×1069064639² = 2285798404720400642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1069064639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1069064609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534532319 + 534532320.

It is an arithmetic number, because the mean of its divisors is an integer number (534532320).

Almost surely, 2^1069064639 is an apocalyptic number.

1069064639 is a deficient number, since it is larger than the sum of its proper divisors (1).

1069064639 is an equidigital number, since it uses as much as digits as its factorization.

1069064639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 1069064639 is about 32696.5539315690. The cubic root of 1069064639 is about 1022.5109988196.

The spelling of 1069064639 in words is "one billion, sixty-nine million, sixty-four thousand, six hundred thirty-nine".