676139744 has 48 divisors (see below), whose sum is σ = 1553707008. Its totient is φ = 283604352.

The previous prime is 676139731. The next prime is 676139773. The reversal of 676139744 is 447931676.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 21584 + ... + 42639.

It is an arithmetic number, because the mean of its divisors is an integer number (32368896).

Almost surely, 2^676139744 is an apocalyptic number.

It is an amenable number.

676139744 is an abundant number, since it is smaller than the sum of its proper divisors (877567264).

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

676139744 is a wasteful number, since it uses less digits than its factorization.

676139744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64287 (or 64279 counting only the distinct ones).

The product of its digits is 762048, while the sum is 47.

The square root of 676139744 is about 26002.6872457444. The cubic root of 676139744 is about 877.6987670496.

The spelling of 676139744 in words is "six hundred seventy-six million, one hundred thirty-nine thousand, seven hundred forty-four".