1064206856 has 8 divisors (see below), whose sum is σ = 1995387870. Its totient is φ = 532103424.

The previous prime is 1064206841. The next prime is 1064206861. The reversal of 1064206856 is 6586024601.

It can be written as a sum of positive squares in only one way, i.e., 1011876100 + 52330756 = 31810^2 + 7234^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1064206856² = 2265072464714809472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66512921 + ... + 66512936.

Almost surely, 2^1064206856 is an apocalyptic number.

It is an amenable number.

1064206856 is a deficient number, since it is larger than the sum of its proper divisors (931181014).

1064206856 is a wasteful number, since it uses less digits than its factorization.

1064206856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133025863 (or 133025859 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 1064206856 is about 32622.1834952843. The cubic root of 1064206856 is about 1020.9598986336.

The spelling of 1064206856 in words is "one billion, sixty-four million, two hundred six thousand, eight hundred fifty-six".