1327064636 has 12 divisors (see below), whose sum is σ = 2323355160. Its totient is φ = 663248880.

The previous prime is 1327064623. The next prime is 1327064653. The reversal of 1327064636 is 6364607231.

It is a super-2 number, since 2×1327064636² = 3522201096243624992, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1327064636.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60146 + ... + 79193.

It is an arithmetic number, because the mean of its divisors is an integer number (193612930).

Almost surely, 2^1327064636 is an apocalyptic number.

It is an amenable number.

1327064636 is a deficient number, since it is larger than the sum of its proper divisors (996290524).

1327064636 is a wasteful number, since it uses less digits than its factorization.

1327064636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141724 (or 141722 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 38.

The square root of 1327064636 is about 36428.8983637990. The cubic root of 1327064636 is about 1098.9148074536.

The spelling of 1327064636 in words is "one billion, three hundred twenty-seven million, sixty-four thousand, six hundred thirty-six".