855104999 has 8 divisors (see below), whose sum is σ = 980871168. Its totient is φ = 730240920.

The previous prime is 855104959. The next prime is 855105011. The reversal of 855104999 is 999401558.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-855104999 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 (855104909) 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, 223487 + ... + 227280.

It is an arithmetic number, because the mean of its divisors is an integer number (122608896).

Almost surely, 2^855104999 is an apocalyptic number.

855104999 is a deficient number, since it is larger than the sum of its proper divisors (125766169).

855104999 is a wasteful number, since it uses less digits than its factorization.

855104999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451045.

The product of its (nonzero) digits is 583200, while the sum is 50.

The square root of 855104999 is about 29242.1784243240. The cubic root of 855104999 is about 949.1608467898.

It can be divided in two parts, 85510 and 4999, that added together give a palindrome (90509).

The spelling of 855104999 in words is "eight hundred fifty-five million, one hundred four thousand, nine hundred ninety-nine".