855184497 has 4 divisors (see below), whose sum is σ = 1140246000. Its totient is φ = 570122996.

The previous prime is 855184489. The next prime is 855184511. The reversal of 855184497 is 794481558.

855184497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 855184497 - 2³ = 855184489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (855184417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142530747 + ... + 142530752.

It is an arithmetic number, because the mean of its divisors is an integer number (285061500).

Almost surely, 2^855184497 is an apocalyptic number.

It is an amenable number.

855184497 is a deficient number, since it is larger than the sum of its proper divisors (285061503).

855184497 is a wasteful number, since it uses less digits than its factorization.

855184497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285061502.

The product of its digits is 1612800, while the sum is 51.

The square root of 855184497 is about 29243.5376963869. The cubic root of 855184497 is about 949.1902599616.

The spelling of 855184497 in words is "eight hundred fifty-five million, one hundred eighty-four thousand, four hundred ninety-seven".