855408884 has 24 divisors (see below), whose sum is σ = 1633800000. Its totient is φ = 388644480.

The previous prime is 855408859. The next prime is 855408887. The reversal of 855408884 is 488804558.

It is a happy number.

855408884 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×855408884² = 1463448717652250912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855408887) 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, 168617 + ... + 173615.

It is an arithmetic number, because the mean of its divisors is an integer number (68075000).

Almost surely, 2^855408884 is an apocalyptic number.

It is an amenable number.

855408884 is a deficient number, since it is larger than the sum of its proper divisors (778391116).

855408884 is a wasteful number, since it uses less digits than its factorization.

855408884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8903 (or 8901 counting only the distinct ones).

The product of its (nonzero) digits is 1638400, while the sum is 50.

The square root of 855408884 is about 29247.3739675890. The cubic root of 855408884 is about 949.2732702478.

The spelling of 855408884 in words is "eight hundred fifty-five million, four hundred eight thousand, eight hundred eighty-four".