855297270 has 24 divisors (see below), whose sum is σ = 2223773136. Its totient is φ = 228079248.

The previous prime is 855297257. The next prime is 855297299. The reversal of 855297270 is 72792558.

It is a happy number.

855297270 is a `hidden beast` number, since 8 + 552 + 97 + 2 + 7 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 4751562 + ... + 4751741.

It is an arithmetic number, because the mean of its divisors is an integer number (92657214).

Almost surely, 2^855297270 is an apocalyptic number.

855297270 is an abundant number, since it is smaller than the sum of its proper divisors (1368475866).

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

855297270 is a wasteful number, since it uses less digits than its factorization.

855297270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9503316 (or 9503313 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 855297270 is about 29245.4658024111. The cubic root of 855297270 is about 949.2319813011.

The spelling of 855297270 in words is "eight hundred fifty-five million, two hundred ninety-seven thousand, two hundred seventy".