677460636 has 18 divisors (see below), whose sum is σ = 1712470032. Its totient is φ = 225820200.

The previous prime is 677460617. The next prime is 677460649. The reversal of 677460636 is 636064776.

677460636 is a `hidden beast` number, since 6 + 7 + 7 + 4 + 6 + 0 + 636 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 677460591 and 677460600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9409140 + ... + 9409211.

It is an arithmetic number, because the mean of its divisors is an integer number (95137224).

Almost surely, 2^677460636 is an apocalyptic number.

It is an amenable number.

677460636 is an abundant number, since it is smaller than the sum of its proper divisors (1035009396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

677460636 is a wasteful number, since it uses less digits than its factorization.

677460636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18818361 (or 18818356 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 45.

The square root of 677460636 is about 26028.0739971286. The cubic root of 677460636 is about 878.2699463810.

The spelling of 677460636 in words is "six hundred seventy-seven million, four hundred sixty thousand, six hundred thirty-six".