855635628 has 48 divisors (see below), whose sum is σ = 2038682240. Its totient is φ = 279241344.

The previous prime is 855635623. The next prime is 855635659. The reversal of 855635628 is 826536558.

It is a super-2 number, since 2×855635628² = 1464224655805908768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (855635621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118251 + ... + 125277.

Almost surely, 2^855635628 is an apocalyptic number.

It is an amenable number.

855635628 is an abundant number, since it is smaller than the sum of its proper divisors (1183046612).

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

855635628 is a wasteful number, since it uses less digits than its factorization.

855635628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7246 (or 7244 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 48.

The square root of 855635628 is about 29251.2500245716. The cubic root of 855635628 is about 949.3571377436.

The spelling of 855635628 in words is "eight hundred fifty-five million, six hundred thirty-five thousand, six hundred twenty-eight".