827625644 has 12 divisors (see below), whose sum is σ = 1482027624. Its totient is φ = 404189184.

The previous prime is 827625611. The next prime is 827625649. The reversal of 827625644 is 446526728.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 827625595 and 827625604.

It is not an unprimeable number, because it can be changed into a prime (827625649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2405717 + ... + 2406060.

It is an arithmetic number, because the mean of its divisors is an integer number (123502302).

Almost surely, 2^827625644 is an apocalyptic number.

It is an amenable number.

827625644 is a deficient number, since it is larger than the sum of its proper divisors (654401980).

827625644 is a wasteful number, since it uses less digits than its factorization.

827625644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4811824 (or 4811822 counting only the distinct ones).

The product of its digits is 645120, while the sum is 44.

The square root of 827625644 is about 28768.4835192959. The cubic root of 827625644 is about 938.8826485202.

The spelling of 827625644 in words is "eight hundred twenty-seven million, six hundred twenty-five thousand, six hundred forty-four".