676388872 has 8 divisors (see below), whose sum is σ = 1268229150. Its totient is φ = 338194432.

The previous prime is 676388851. The next prime is 676388887. The reversal of 676388872 is 278883676.

It can be written as a sum of positive squares in only one way, i.e., 538889796 + 137499076 = 23214^2 + 11726^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42274297 + ... + 42274312.

Almost surely, 2^676388872 is an apocalyptic number.

It is an amenable number.

676388872 is a deficient number, since it is larger than the sum of its proper divisors (591840278).

676388872 is a wasteful number, since it uses less digits than its factorization.

676388872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84548615 (or 84548611 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 55.

The square root of 676388872 is about 26007.4772325191. The cubic root of 676388872 is about 877.8065517151.

The spelling of 676388872 in words is "six hundred seventy-six million, three hundred eighty-eight thousand, eight hundred seventy-two".