872398847 has 2 divisors, whose sum is σ = 872398848. Its totient is φ = 872398846.

The previous prime is 872398841. The next prime is 872398853. The reversal of 872398847 is 748893278.

It is a balanced prime because it is at equal distance from previous prime (872398841) and next prime (872398853).

It is a cyclic number.

It is not a de Polignac number, because 872398847 - 2²⁸ = 603963391 is a prime.

It is a super-2 number, since 2×872398847² = 1522159496493858818, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 872398792 and 872398801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (872398841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436199423 + 436199424.

It is an arithmetic number, because the mean of its divisors is an integer number (436199424).

Almost surely, 2^872398847 is an apocalyptic number.

872398847 is a deficient number, since it is larger than the sum of its proper divisors (1).

872398847 is an equidigital number, since it uses as much as digits as its factorization.

872398847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5419008, while the sum is 56.

The square root of 872398847 is about 29536.3986802724. The cubic root of 872398847 is about 955.5168741543.

The spelling of 872398847 in words is "eight hundred seventy-two million, three hundred ninety-eight thousand, eight hundred forty-seven".