672867976 has 64 divisors (see below), whose sum is σ = 1498824000. Its totient is φ = 279740160.

The previous prime is 672867917. The next prime is 672867983. The reversal of 672867976 is 679768276.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a self number, because there is not a number n which added to its sum of digits gives 672867976.

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 15 ways as a sum of consecutive naturals, for example, 41550 + ... + 55426.

It is an arithmetic number, because the mean of its divisors is an integer number (23419125).

Almost surely, 2^672867976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672867976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (749412000).

672867976 is an abundant number, since it is smaller than the sum of its proper divisors (825956024).

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

672867976 is a wasteful number, since it uses less digits than its factorization.

672867976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13942 (or 13938 counting only the distinct ones).

The product of its digits is 10668672, while the sum is 58.

The square root of 672867976 is about 25939.6988417368. The cubic root of 672867976 is about 876.2807805614.

The spelling of 672867976 in words is "six hundred seventy-two million, eight hundred sixty-seven thousand, nine hundred seventy-six".