855323634 has 16 divisors (see below), whose sum is σ = 1866160800. Its totient is φ = 259188960.

The previous prime is 855323633. The next prime is 855323641. The reversal of 855323634 is 436323558.

It is a junction number, because it is equal to n+sod(n) for n = 855323592 and 855323601.

It is not an unprimeable number, because it can be changed into a prime (855323633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6479659 + ... + 6479790.

It is an arithmetic number, because the mean of its divisors is an integer number (116635050).

Almost surely, 2^855323634 is an apocalyptic number.

855323634 is an abundant number, since it is smaller than the sum of its proper divisors (1010837166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

855323634 is a wasteful number, since it uses less digits than its factorization.

855323634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12959465.

The product of its digits is 259200, while the sum is 39.

The square root of 855323634 is about 29245.9165354755. The cubic root of 855323634 is about 949.2417343604.

The spelling of 855323634 in words is "eight hundred fifty-five million, three hundred twenty-three thousand, six hundred thirty-four".