672641712 has 40 divisors (see below), whose sum is σ = 1930732080. Its totient is φ = 224213760.

The previous prime is 672641681. The next prime is 672641729. The reversal of 672641712 is 217146276.

672641712 is a `hidden beast` number, since 6 + 7 + 2 + 641 + 7 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 7 ways as a sum of consecutive naturals, for example, 778089 + ... + 778952.

It is an arithmetic number, because the mean of its divisors is an integer number (48268302).

Almost surely, 2^672641712 is an apocalyptic number.

It is an amenable number.

672641712 is an abundant number, since it is smaller than the sum of its proper divisors (1258090368).

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

672641712 is a wasteful number, since it uses less digits than its factorization.

672641712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557058 (or 1557046 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 672641712 is about 25935.3371290986. The cubic root of 672641712 is about 876.1825478076.

Adding to 672641712 its reverse (217146276), we get a palindrome (889787988).

The spelling of 672641712 in words is "six hundred seventy-two million, six hundred forty-one thousand, seven hundred twelve".