872437805 has 8 divisors (see below), whose sum is σ = 1080697344. Its totient is φ = 675435600.

The previous prime is 872437703. The next prime is 872437831. The reversal of 872437805 is 508734278.

It is a happy number.

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

It is not a de Polignac number, because 872437805 - 2¹⁰ = 872436781 is a prime.

It is a super-2 number, since 2×872437805² = 1522295447186436050, which contains 22 as substring.

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, 2814161 + ... + 2814470.

It is an arithmetic number, because the mean of its divisors is an integer number (135087168).

Almost surely, 2^872437805 is an apocalyptic number.

It is an amenable number.

872437805 is a deficient number, since it is larger than the sum of its proper divisors (208259539).

872437805 is a wasteful number, since it uses less digits than its factorization.

872437805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5628667.

The product of its (nonzero) digits is 376320, while the sum is 44.

The square root of 872437805 is about 29537.0581642790. The cubic root of 872437805 is about 955.5310971871.

The spelling of 872437805 in words is "eight hundred seventy-two million, four hundred thirty-seven thousand, eight hundred five".