1027712564 has 6 divisors (see below), whose sum is σ = 1798496994. Its totient is φ = 513856280.

The previous prime is 1027712561. The next prime is 1027712573. The reversal of 1027712564 is 4652177201.

It can be written as a sum of positive squares in only one way, i.e., 881496100 + 146216464 = 29690^2 + 12092^2 .

It is a super-2 number, since 2×1027712564² = 2112386228406908192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1027712561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128464067 + ... + 128464074.

It is an arithmetic number, because the mean of its divisors is an integer number (299749499).

Almost surely, 2^1027712564 is an apocalyptic number.

It is an amenable number.

1027712564 is a deficient number, since it is larger than the sum of its proper divisors (770784430).

1027712564 is a wasteful number, since it uses less digits than its factorization.

1027712564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256928145 (or 256928143 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 1027712564 is about 32057.9563291237. The cubic root of 1027712564 is about 1009.1534795013.

Adding to 1027712564 its reverse (4652177201), we get a palindrome (5679889765).

The spelling of 1027712564 in words is "one billion, twenty-seven million, seven hundred twelve thousand, five hundred sixty-four".