2672387217 has 12 divisors (see below), whose sum is σ = 3862726660. Its totient is φ = 1780386048.

The previous prime is 2672387161. The next prime is 2672387231. The reversal of 2672387217 is 7127832762.

2672387217 is a `hidden beast` number, since 267 + 2 + 387 + 2 + 1 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1227170961 + 1445216256 = 35031^2 + 38016^2 .

It is not a de Polignac number, because 2672387217 - 2⁶ = 2672387153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2672387317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86308 + ... + 113109.

Almost surely, 2^2672387217 is an apocalyptic number.

It is an amenable number.

2672387217 is a deficient number, since it is larger than the sum of its proper divisors (1190339443).

2672387217 is a wasteful number, since it uses less digits than its factorization.

2672387217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200912 (or 200909 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 2672387217 is about 51695.1372664780. The cubic root of 2672387217 is about 1387.7134424987.

The spelling of 2672387217 in words is "two billion, six hundred seventy-two million, three hundred eighty-seven thousand, two hundred seventeen".