856768023 has 40 divisors (see below), whose sum is σ = 1370571840. Its totient is φ = 531463680.

The previous prime is 856768001. The next prime is 856768037. The reversal of 856768023 is 320867658.

856768023 is a `hidden beast` number, since 8 + 567 + 6 + 80 + 2 + 3 = 666.

856768023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 856768023 - 2¹⁶ = 856702487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 856768023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856768043) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 119058 + ... + 126048.

It is an arithmetic number, because the mean of its divisors is an integer number (34264296).

Almost surely, 2^856768023 is an apocalyptic number.

856768023 is a deficient number, since it is larger than the sum of its proper divisors (513803817).

856768023 is a wasteful number, since it uses less digits than its factorization.

856768023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7109 (or 7100 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 856768023 is about 29270.5999767685. The cubic root of 856768023 is about 949.7757635116.

The spelling of 856768023 in words is "eight hundred fifty-six million, seven hundred sixty-eight thousand, twenty-three".