873156047 has 2 divisors, whose sum is σ = 873156048. Its totient is φ = 873156046.

The previous prime is 873156019. The next prime is 873156071. The reversal of 873156047 is 740651378.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 873156047 - 2²⁰ = 872107471 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 873155995 and 873156013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (873156547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436578023 + 436578024.

It is an arithmetic number, because the mean of its divisors is an integer number (436578024).

Almost surely, 2^873156047 is an apocalyptic number.

873156047 is a deficient number, since it is larger than the sum of its proper divisors (1).

873156047 is an equidigital number, since it uses as much as digits as its factorization.

873156047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 873156047 is about 29549.2139827780. The cubic root of 873156047 is about 955.7932416875.

The spelling of 873156047 in words is "eight hundred seventy-three million, one hundred fifty-six thousand, forty-seven".