872192287 has 2 divisors, whose sum is σ = 872192288. Its totient is φ = 872192286.

The previous prime is 872192261. The next prime is 872192309. The reversal of 872192287 is 782291278.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 872192287 - 2¹⁹ = 871667999 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (872192227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436096143 + 436096144.

It is an arithmetic number, because the mean of its divisors is an integer number (436096144).

Almost surely, 2^872192287 is an apocalyptic number.

872192287 is a deficient number, since it is larger than the sum of its proper divisors (1).

872192287 is an equidigital number, since it uses as much as digits as its factorization.

872192287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225792, while the sum is 46.

The square root of 872192287 is about 29532.9017707370. The cubic root of 872192287 is about 955.4414548490.

The spelling of 872192287 in words is "eight hundred seventy-two million, one hundred ninety-two thousand, two hundred eighty-seven".