872322653 has 2 divisors, whose sum is σ = 872322654. Its totient is φ = 872322652.

The previous prime is 872322599. The next prime is 872322691. The reversal of 872322653 is 356223278.

It is an a-pointer prime, because the next prime (872322691) can be obtained adding 872322653 to its sum of digits (38).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 590149849 + 282172804 = 24293^2 + 16798^2 .

It is a cyclic number.

It is not a de Polignac number, because 872322653 - 2⁶ = 872322589 is a prime.

It is a congruent number.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436161326 + 436161327.

It is an arithmetic number, because the mean of its divisors is an integer number (436161327).

Almost surely, 2^872322653 is an apocalyptic number.

It is an amenable number.

872322653 is a deficient number, since it is larger than the sum of its proper divisors (1).

872322653 is an equidigital number, since it uses as much as digits as its factorization.

872322653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 38.

The square root of 872322653 is about 29535.1088198435. The cubic root of 872322653 is about 955.4890555433.

The spelling of 872322653 in words is "eight hundred seventy-two million, three hundred twenty-two thousand, six hundred fifty-three".