677650868 has 6 divisors (see below), whose sum is σ = 1185889026. Its totient is φ = 338825432.

The previous prime is 677650867. The next prime is 677650871. The reversal of 677650868 is 868056776.

It can be written as a sum of positive squares in only one way, i.e., 669877924 + 7772944 = 25882^2 + 2788^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677650867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84706355 + ... + 84706362.

It is an arithmetic number, because the mean of its divisors is an integer number (197648171).

Almost surely, 2^677650868 is an apocalyptic number.

It is an amenable number.

677650868 is a deficient number, since it is larger than the sum of its proper divisors (508238158).

677650868 is a wasteful number, since it uses less digits than its factorization.

677650868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169412721 (or 169412719 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 53.

The square root of 677650868 is about 26031.7281024522. The cubic root of 677650868 is about 878.3521452099.

The spelling of 677650868 in words is "six hundred seventy-seven million, six hundred fifty thousand, eight hundred sixty-eight".