672338091 has 4 divisors (see below), whose sum is σ = 896450792. Its totient is φ = 448225392.

The previous prime is 672338089. The next prime is 672338119. The reversal of 672338091 is 190833276.

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

It is not a de Polignac number, because 672338091 - 2¹ = 672338089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672338011) 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 3 ways as a sum of consecutive naturals, for example, 112056346 + ... + 112056351.

It is an arithmetic number, because the mean of its divisors is an integer number (224112698).

Almost surely, 2^672338091 is an apocalyptic number.

672338091 is a deficient number, since it is larger than the sum of its proper divisors (224112701).

672338091 is a wasteful number, since it uses less digits than its factorization.

672338091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224112700.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 672338091 is about 25929.4830453675. The cubic root of 672338091 is about 876.0506958109.

The spelling of 672338091 in words is "six hundred seventy-two million, three hundred thirty-eight thousand, ninety-one".