672366089 has 4 divisors (see below), whose sum is σ = 672854340. Its totient is φ = 671877840.

The previous prime is 672366047. The next prime is 672366137. The reversal of 672366089 is 980663276.

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

It can be written as a sum of positive squares in 2 ways, for example, as 515290000 + 157076089 = 22700^2 + 12533^2 .

It is a cyclic number.

It is not a de Polignac number, because 672366089 - 2²⁰ = 671317513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672366389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242054 + ... + 244815.

It is an arithmetic number, because the mean of its divisors is an integer number (168213585).

Almost surely, 2^672366089 is an apocalyptic number.

It is an amenable number.

672366089 is a deficient number, since it is larger than the sum of its proper divisors (488251).

672366089 is a wasteful number, since it uses less digits than its factorization.

672366089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488250.

The product of its (nonzero) digits is 653184, while the sum is 47.

The square root of 672366089 is about 25930.0229271013. The cubic root of 672366089 is about 876.0628560257.

The spelling of 672366089 in words is "six hundred seventy-two million, three hundred sixty-six thousand, eighty-nine".