872865743 has 2 divisors, whose sum is σ = 872865744. Its totient is φ = 872865742.

The previous prime is 872865737. The next prime is 872865761. The reversal of 872865743 is 347568278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 872865743 - 2¹⁰ = 872864719 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 872865691 and 872865700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (872865733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436432871 + 436432872.

It is an arithmetic number, because the mean of its divisors is an integer number (436432872).

Almost surely, 2^872865743 is an apocalyptic number.

872865743 is a deficient number, since it is larger than the sum of its proper divisors (1).

872865743 is an equidigital number, since it uses as much as digits as its factorization.

872865743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2257920, while the sum is 50.

The square root of 872865743 is about 29544.3013625301. The cubic root of 872865743 is about 955.6873036334.

The spelling of 872865743 in words is "eight hundred seventy-two million, eight hundred sixty-five thousand, seven hundred forty-three".