672706689 has 16 divisors (see below), whose sum is σ = 908255040. Its totient is φ = 442843200.

The previous prime is 672706627. The next prime is 672706693. The reversal of 672706689 is 986607276.

It is not a de Polignac number, because 672706689 - 2¹⁶ = 672641153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (672706189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97039 + ... + 103739.

It is an arithmetic number, because the mean of its divisors is an integer number (56765940).

Almost surely, 2^672706689 is an apocalyptic number.

It is an amenable number.

672706689 is a deficient number, since it is larger than the sum of its proper divisors (235548351).

672706689 is a wasteful number, since it uses less digits than its factorization.

672706689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7120.

The product of its (nonzero) digits is 1524096, while the sum is 51.

The square root of 672706689 is about 25936.5897719804. The cubic root of 672706689 is about 876.2107598950.

The spelling of 672706689 in words is "six hundred seventy-two million, seven hundred six thousand, six hundred eighty-nine".