855596447 has 4 divisors (see below), whose sum is σ = 858620040. Its totient is φ = 852572856.

The previous prime is 855596419. The next prime is 855596459. The reversal of 855596447 is 744695558.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 855596447 - 2¹⁸ = 855334303 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 (855596047) 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, 1511372 + ... + 1511937.

It is an arithmetic number, because the mean of its divisors is an integer number (214655010).

Almost surely, 2^855596447 is an apocalyptic number.

855596447 is a deficient number, since it is larger than the sum of its proper divisors (3023593).

855596447 is a wasteful number, since it uses less digits than its factorization.

855596447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3023592.

The product of its digits is 6048000, while the sum is 53.

The square root of 855596447 is about 29250.5802848422. The cubic root of 855596447 is about 949.3426466337.

The spelling of 855596447 in words is "eight hundred fifty-five million, five hundred ninety-six thousand, four hundred forty-seven".