872347 has 12 divisors (see below), whose sum is σ = 1069320. Its totient is φ = 707616.

The previous prime is 872323. The next prime is 872351. The reversal of 872347 is 743278.

It is a de Polignac number, because none of the positive numbers 2^k-872347 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 463 + ... + 1399.

It is an arithmetic number, because the mean of its divisors is an integer number (89110).

2⁸⁷²³⁴⁷ is an apocalyptic number.

872347 is a deficient number, since it is larger than the sum of its proper divisors (196973).

872347 is a wasteful number, since it uses less digits than its factorization.

872347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970 (or 963 counting only the distinct ones).

The product of its digits is 9408, while the sum is 31.

The square root of 872347 is about 933.9951820004. The cubic root of 872347 is about 95.5497944867.

The spelling of 872347 in words is "eight hundred seventy-two thousand, three hundred forty-seven".