672123677 has 4 divisors (see below), whose sum is σ = 672175680. Its totient is φ = 672071676.

The previous prime is 672123671. The next prime is 672123703. The reversal of 672123677 is 776321276.

672123677 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 672123677 - 2⁸ = 672123421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672123671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10028 + ... + 38010.

It is an arithmetic number, because the mean of its divisors is an integer number (168043920).

Almost surely, 2^672123677 is an apocalyptic number.

It is an amenable number.

672123677 is a deficient number, since it is larger than the sum of its proper divisors (52003).

672123677 is a wasteful number, since it uses less digits than its factorization.

672123677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52002.

The product of its digits is 148176, while the sum is 41.

The square root of 672123677 is about 25925.3481558108. The cubic root of 672123677 is about 875.9575593827.

The spelling of 672123677 in words is "six hundred seventy-two million, one hundred twenty-three thousand, six hundred seventy-seven".