872235805 has 8 divisors (see below), whose sum is σ = 1196209152. Its totient is φ = 598104528.

The previous prime is 872235769. The next prime is 872235851. The reversal of 872235805 is 508532278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-872235805 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12460477 + ... + 12460546.

It is an arithmetic number, because the mean of its divisors is an integer number (149526144).

Almost surely, 2^872235805 is an apocalyptic number.

It is an amenable number.

872235805 is a deficient number, since it is larger than the sum of its proper divisors (323973347).

872235805 is a wasteful number, since it uses less digits than its factorization.

872235805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24921035.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 872235805 is about 29533.6385330355. The cubic root of 872235805 is about 955.4573451560.

The spelling of 872235805 in words is "eight hundred seventy-two million, two hundred thirty-five thousand, eight hundred five".