672872369 has 8 divisors (see below), whose sum is σ = 731281320. Its totient is φ = 615413376.

The previous prime is 672872363. The next prime is 672872381. The reversal of 672872369 is 963278276.

672872369 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 92640625 + 580231744 = 9625^2 + 24088^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 672872369 - 2⁴ = 672872353 is a prime.

It is a super-2 number, since 2×672872369² = 905514449927344322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672872363) 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, 236012 + ... + 238845.

It is an arithmetic number, because the mean of its divisors is an integer number (91410165).

Almost surely, 2^672872369 is an apocalyptic number.

It is an amenable number.

672872369 is a deficient number, since it is larger than the sum of its proper divisors (58408951).

672872369 is a wasteful number, since it uses less digits than its factorization.

672872369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474979.

The product of its digits is 1524096, while the sum is 50.

The square root of 672872369 is about 25939.7835187574. The cubic root of 672872369 is about 876.2826875691.

It can be divided in two parts, 6728 and 72369, that added together give a palindrome (79097).

The spelling of 672872369 in words is "six hundred seventy-two million, eight hundred seventy-two thousand, three hundred sixty-nine".