677012987 has 8 divisors (see below), whose sum is σ = 773890272. Its totient is φ = 580176000.

The previous prime is 677012977. The next prime is 677012993. The reversal of 677012987 is 789210776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 677012987 - 2⁴ = 677012971 is a prime.

It is a Duffinian number.

677012987 is a modest number, since divided by 12987 gives 677 as remainder.

It is not an unprimeable number, because it can be changed into a prime (677012977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49187 + ... + 61427.

It is an arithmetic number, because the mean of its divisors is an integer number (96736284).

Almost surely, 2^677012987 is an apocalyptic number.

677012987 is a deficient number, since it is larger than the sum of its proper divisors (96877285).

677012987 is a wasteful number, since it uses less digits than its factorization.

677012987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20149.

The product of its (nonzero) digits is 296352, while the sum is 47.

The square root of 677012987 is about 26019.4732267969. The cubic root of 677012987 is about 878.0764575050.

The spelling of 677012987 in words is "six hundred seventy-seven million, twelve thousand, nine hundred eighty-seven".