677774966 has 24 divisors (see below), whose sum is σ = 1124669280. Its totient is φ = 306100080.

The previous prime is 677774947. The next prime is 677774969. The reversal of 677774966 is 669477776.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677774969) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 29075 + ... + 46913.

It is an arithmetic number, because the mean of its divisors is an integer number (46861220).

Almost surely, 2^677774966 is an apocalyptic number.

677774966 is a deficient number, since it is larger than the sum of its proper divisors (446894314).

677774966 is a wasteful number, since it uses less digits than its factorization.

677774966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18020 (or 18009 counting only the distinct ones).

The product of its digits is 18670176, while the sum is 59.

The square root of 677774966 is about 26034.1115846114. Note that the first 3 decimals coincide. The cubic root of 677774966 is about 878.4057593921.

The spelling of 677774966 in words is "six hundred seventy-seven million, seven hundred seventy-four thousand, nine hundred sixty-six".