855072886 has 16 divisors (see below), whose sum is σ = 1374549984. Its totient is φ = 397894464.

The previous prime is 855072877. The next prime is 855072887. The reversal of 855072886 is 688270558.

It is a happy number.

It is a super-2 number, since 2×855072886² = 1462299280744737992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855072887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249495 + ... + 252898.

It is an arithmetic number, because the mean of its divisors is an integer number (85909374).

Almost surely, 2^855072886 is an apocalyptic number.

855072886 is a deficient number, since it is larger than the sum of its proper divisors (519477098).

855072886 is a wasteful number, since it uses less digits than its factorization.

855072886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502455.

The product of its (nonzero) digits is 1075200, while the sum is 49.

The square root of 855072886 is about 29241.6293321696. The cubic root of 855072886 is about 949.1489649024.

The spelling of 855072886 in words is "eight hundred fifty-five million, seventy-two thousand, eight hundred eighty-six".