672559994 has 16 divisors (see below), whose sum is σ = 1014741000. Its totient is φ = 334319424.

The previous prime is 672559991. The next prime is 672560017. The reversal of 672559994 is 499955276.

672559994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 566202025 + 106357969 = 23795^2 + 10313^2 .

It is not an unprimeable number, because it can be changed into a prime (672559991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270284 + ... + 272760.

Almost surely, 2^672559994 is an apocalyptic number.

672559994 is a deficient number, since it is larger than the sum of its proper divisors (342181006).

672559994 is a wasteful number, since it uses less digits than its factorization.

672559994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3217.

The product of its digits is 6123600, while the sum is 56.

The square root of 672559994 is about 25933.7616631294. The cubic root of 672559994 is about 876.1470644372.

The spelling of 672559994 in words is "six hundred seventy-two million, five hundred fifty-nine thousand, nine hundred ninety-four".