1064889872 has 10 divisors (see below), whose sum is σ = 2063224158. Its totient is φ = 532444928.

The previous prime is 1064889823. The next prime is 1064889887. The reversal of 1064889872 is 2789884601.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 867655936 + 197233936 = 29456^2 + 14044^2 .

It is a super-2 number, since 2×1064889872² = 2267980878976352768, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 33277793 + ... + 33277824.

Almost surely, 2^1064889872 is an apocalyptic number.

It is an amenable number.

1064889872 is a deficient number, since it is larger than the sum of its proper divisors (998334286).

1064889872 is an equidigital number, since it uses as much as digits as its factorization.

1064889872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66555625 (or 66555619 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 53.

The square root of 1064889872 is about 32632.6503980293. The cubic root of 1064889872 is about 1021.1782718477.

The spelling of 1064889872 in words is "one billion, sixty-four million, eight hundred eighty-nine thousand, eight hundred seventy-two".