852688991 has 8 divisors (see below), whose sum is σ = 1063092864. Its totient is φ = 664432920.

The previous prime is 852688987. The next prime is 852689003. The reversal of 852688991 is 199886258.

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

It is a cyclic number.

It is not a de Polignac number, because 852688991 - 2² = 852688987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (852688951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5536865 + ... + 5537018.

It is an arithmetic number, because the mean of its divisors is an integer number (132886608).

Almost surely, 2^852688991 is an apocalyptic number.

852688991 is a deficient number, since it is larger than the sum of its proper divisors (210403873).

852688991 is a wasteful number, since it uses less digits than its factorization.

852688991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11073901.

The product of its digits is 2488320, while the sum is 56.

The square root of 852688991 is about 29200.8388749365. The cubic root of 852688991 is about 948.2660859864.

The spelling of 852688991 in words is "eight hundred fifty-two million, six hundred eighty-eight thousand, nine hundred ninety-one".