855927923 has 4 divisors (see below), whose sum is σ = 857432760. Its totient is φ = 854423088.

The previous prime is 855927907. The next prime is 855927929. The reversal of 855927923 is 329729558.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 329729558 = 2 ⋅164864779.

It is a cyclic number.

It is not a de Polignac number, because 855927923 - 2⁴ = 855927907 is a prime.

It is a super-2 number, since 2×855927923² = 1465225218742187858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (855927929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 751565 + ... + 752702.

It is an arithmetic number, because the mean of its divisors is an integer number (214358190).

Almost surely, 2^855927923 is an apocalyptic number.

855927923 is a deficient number, since it is larger than the sum of its proper divisors (1504837).

855927923 is a wasteful number, since it uses less digits than its factorization.

855927923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504836.

The product of its digits is 1360800, while the sum is 50.

The square root of 855927923 is about 29256.2458801535. The cubic root of 855927923 is about 949.4652292190.

The spelling of 855927923 in words is "eight hundred fifty-five million, nine hundred twenty-seven thousand, nine hundred twenty-three".