672599109 has 32 divisors (see below), whose sum is σ = 1106237440. Its totient is φ = 353979072.

The previous prime is 672599089. The next prime is 672599113. The reversal of 672599109 is 901995276.

It is not a de Polignac number, because 672599109 - 2⁷ = 672598981 is a prime.

It is a super-2 number, since 2×672599109² = 904779122855187762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672599119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130422 + ... + 135480.

It is an arithmetic number, because the mean of its divisors is an integer number (34569920).

Almost surely, 2^672599109 is an apocalyptic number.

It is an amenable number.

672599109 is a deficient number, since it is larger than the sum of its proper divisors (433638331).

672599109 is a wasteful number, since it uses less digits than its factorization.

672599109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5569.

The product of its (nonzero) digits is 306180, while the sum is 48.

The square root of 672599109 is about 25934.5157849535. The cubic root of 672599109 is about 876.1640492060.

The spelling of 672599109 in words is "six hundred seventy-two million, five hundred ninety-nine thousand, one hundred nine".