672846407 has 4 divisors (see below), whose sum is σ = 687162336. Its totient is φ = 658530480.

The previous prime is 672846403. The next prime is 672846431. The reversal of 672846407 is 704648276.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 672846407 - 2² = 672846403 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 (672846403) by changing a digit.

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, 7157894 + ... + 7157987.

It is an arithmetic number, because the mean of its divisors is an integer number (171790584).

Almost surely, 2^672846407 is an apocalyptic number.

672846407 is a deficient number, since it is larger than the sum of its proper divisors (14315929).

672846407 is a wasteful number, since it uses less digits than its factorization.

672846407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14315928.

The product of its (nonzero) digits is 451584, while the sum is 44.

The square root of 672846407 is about 25939.2830856984. The cubic root of 672846407 is about 876.2714173070.

It can be divided in two parts, 6728 and 46407, that added together give a palindrome (53135).

The spelling of 672846407 in words is "six hundred seventy-two million, eight hundred forty-six thousand, four hundred seven".