672677646 has 8 divisors (see below), whose sum is σ = 1345355304. Its totient is φ = 224225880.

The previous prime is 672677639. The next prime is 672677651. The reversal of 672677646 is 646776276.

It is a sphenic number, since it is the product of 3 distinct primes.

672677646 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 56056465 + ... + 56056476.

It is an arithmetic number, because the mean of its divisors is an integer number (168169413).

Almost surely, 2^672677646 is an apocalyptic number.

672677646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

672677646 is a wasteful number, since it uses less digits than its factorization.

672677646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112112946.

The product of its digits is 3556224, while the sum is 51.

The square root of 672677646 is about 25936.0298812289. The cubic root of 672677646 is about 876.1981500628.

The spelling of 672677646 in words is "six hundred seventy-two million, six hundred seventy-seven thousand, six hundred forty-six".