1064939785 has 48 divisors (see below), whose sum is σ = 1608768000. Its totient is φ = 670771584.

The previous prime is 1064939749. The next prime is 1064939867. The reversal of 1064939785 is 5879394601.

It is a happy number.

It is not a de Polignac number, because 1064939785 - 2¹⁵ = 1064907017 is a prime.

It is a super-2 number, since 2×1064939785² = 2268193491351692450, which contains 22 as substring.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 760516 + ... + 761914.

It is an arithmetic number, because the mean of its divisors is an integer number (33516000).

Almost surely, 2^1064939785 is an apocalyptic number.

It is an amenable number.

1064939785 is a deficient number, since it is larger than the sum of its proper divisors (543828215).

1064939785 is a wasteful number, since it uses less digits than its factorization.

1064939785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670 (or 1663 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 52.

The square root of 1064939785 is about 32633.4151599247. The cubic root of 1064939785 is about 1021.1942263222.

The spelling of 1064939785 in words is "one billion, sixty-four million, nine hundred thirty-nine thousand, seven hundred eighty-five".