872366611 has 4 divisors (see below), whose sum is σ = 923682312. Its totient is φ = 821050912.

The previous prime is 872366557. The next prime is 872366633. The reversal of 872366611 is 116663278.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 116663278 = 2 ⋅58331639.

It is a cyclic number.

It is not a de Polignac number, because 872366611 - 2²⁵ = 838812179 is a prime.

It is a super-2 number, since 2×872366611² = 1522047007975250642, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (872366311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25657825 + ... + 25657858.

It is an arithmetic number, because the mean of its divisors is an integer number (230920578).

Almost surely, 2^872366611 is an apocalyptic number.

872366611 is a deficient number, since it is larger than the sum of its proper divisors (51315701).

872366611 is a wasteful number, since it uses less digits than its factorization.

872366611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51315700.

The product of its digits is 72576, while the sum is 40.

The square root of 872366611 is about 29535.8529756633. The cubic root of 872366611 is about 955.5051049116.

The spelling of 872366611 in words is "eight hundred seventy-two million, three hundred sixty-six thousand, six hundred eleven".