1064884709 has 12 divisors (see below), whose sum is σ = 1311611724. Its totient is φ = 859065984.

The previous prime is 1064884657. The next prime is 1064884739. The reversal of 1064884709 is 9074884601.

It can be written as a sum of positive squares in 2 ways, for example, as 413512225 + 651372484 = 20335^2 + 25522^2 .

It is not a de Polignac number, because 1064884709 - 2¹² = 1064880613 is a prime.

It is a super-2 number, since 2×1064884709² = 2267958886924029362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1064884739) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 638354 + ... + 640019.

It is an arithmetic number, because the mean of its divisors is an integer number (109300977).

Almost surely, 2^1064884709 is an apocalyptic number.

It is an amenable number.

1064884709 is a deficient number, since it is larger than the sum of its proper divisors (246727015).

1064884709 is a wasteful number, since it uses less digits than its factorization.

1064884709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278404 (or 1278397 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 1064884709 is about 32632.5712900470. The cubic root of 1064884709 is about 1021.1766214886.

The spelling of 1064884709 in words is "one billion, sixty-four million, eight hundred eighty-four thousand, seven hundred nine".