827756668 has 24 divisors (see below), whose sum is σ = 1527128064. Its totient is φ = 392002800.

The previous prime is 827756653. The next prime is 827756689. The reversal of 827756668 is 866657728.

It is a super-2 number, since 2×827756668² = 1370362202836924448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65188 + ... + 76843.

It is an arithmetic number, because the mean of its divisors is an integer number (63630336).

Almost surely, 2^827756668 is an apocalyptic number.

It is an amenable number.

827756668 is a deficient number, since it is larger than the sum of its proper divisors (699371396).

827756668 is a wasteful number, since it uses less digits than its factorization.

827756668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142113 (or 142111 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 55.

The square root of 827756668 is about 28770.7606434032. The cubic root of 827756668 is about 938.9321917205.

The spelling of 827756668 in words is "eight hundred twenty-seven million, seven hundred fifty-six thousand, six hundred sixty-eight".