869199001 has 24 divisors (see below), whose sum is σ = 1020320640. Its totient is φ = 734073600.

The previous prime is 869198983. The next prime is 869199011. The reversal of 869199001 is 100991968.

It is not a de Polignac number, because 869199001 - 2⁷ = 869198873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (869199011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 249411 + ... + 252871.

It is an arithmetic number, because the mean of its divisors is an integer number (42513360).

Almost surely, 2^869199001 is an apocalyptic number.

It is an amenable number.

869199001 is a deficient number, since it is larger than the sum of its proper divisors (151121639).

869199001 is a wasteful number, since it uses less digits than its factorization.

869199001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3585 (or 3568 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 43.

The square root of 869199001 is about 29482.1810760330. The cubic root of 869199001 is about 954.3472055354.

The spelling of 869199001 in words is "eight hundred sixty-nine million, one hundred ninety-nine thousand, one".