849273656 has 32 divisors (see below), whose sum is σ = 1985316480. Its totient is φ = 330885600.

The previous prime is 849273653. The next prime is 849273673. The reversal of 849273656 is 656372948.

It is a happy number.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849273653) 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, 688730 + ... + 689961.

It is an arithmetic number, because the mean of its divisors is an integer number (62041140).

Almost surely, 2^849273656 is an apocalyptic number.

It is an amenable number.

849273656 is an abundant number, since it is smaller than the sum of its proper divisors (1136042824).

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

849273656 is a wasteful number, since it uses less digits than its factorization.

849273656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378715 (or 1378711 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 50.

The square root of 849273656 is about 29142.3001151247. The cubic root of 849273656 is about 946.9983396658.

The spelling of 849273656 in words is "eight hundred forty-nine million, two hundred seventy-three thousand, six hundred fifty-six".