872329805 has 16 divisors (see below), whose sum is σ = 1112201280. Its totient is φ = 654947712.

The previous prime is 872329769. The next prime is 872329819. The reversal of 872329805 is 508923278.

It is a cyclic number.

It is not a de Polignac number, because 872329805 - 2¹⁸ = 872067661 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 32744 + ... + 53073.

It is an arithmetic number, because the mean of its divisors is an integer number (69512580).

Almost surely, 2^872329805 is an apocalyptic number.

It is an amenable number.

872329805 is a deficient number, since it is larger than the sum of its proper divisors (239871475).

872329805 is a wasteful number, since it uses less digits than its factorization.

872329805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85948.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 872329805 is about 29535.2298958380. The cubic root of 872329805 is about 955.4916668245.

The spelling of 872329805 in words is "eight hundred seventy-two million, three hundred twenty-nine thousand, eight hundred five".