672844955 has 16 divisors (see below), whose sum is σ = 857278080. Its totient is φ = 505208832.

The previous prime is 672844943. The next prime is 672844957. The reversal of 672844955 is 559448276.

It is a cyclic number.

It is not a de Polignac number, because 672844955 - 2¹⁰ = 672843931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (672844957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20411 + ... + 41979.

It is an arithmetic number, because the mean of its divisors is an integer number (53579880).

Almost surely, 2^672844955 is an apocalyptic number.

672844955 is a deficient number, since it is larger than the sum of its proper divisors (184433125).

672844955 is a wasteful number, since it uses less digits than its factorization.

672844955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21958.

The product of its digits is 2419200, while the sum is 50.

The square root of 672844955 is about 25939.2550972460. The cubic root of 672844955 is about 876.2707869764.

The spelling of 672844955 in words is "six hundred seventy-two million, eight hundred forty-four thousand, nine hundred fifty-five".