872331547 has 2 divisors, whose sum is σ = 872331548. Its totient is φ = 872331546.

The previous prime is 872331503. The next prime is 872331641. The reversal of 872331547 is 745133278.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-872331547 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (872331247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436165773 + 436165774.

It is an arithmetic number, because the mean of its divisors is an integer number (436165774).

Almost surely, 2^872331547 is an apocalyptic number.

872331547 is a deficient number, since it is larger than the sum of its proper divisors (1).

872331547 is an equidigital number, since it uses as much as digits as its factorization.

872331547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 40.

The square root of 872331547 is about 29535.2593860288. The cubic root of 872331547 is about 955.4923028474.

The spelling of 872331547 in words is "eight hundred seventy-two million, three hundred thirty-one thousand, five hundred forty-seven".