8155423 has 4 divisors (see below), whose sum is σ = 8345128. Its totient is φ = 7965720.

The previous prime is 8155421. The next prime is 8155451. The reversal of 8155423 is 3245518.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8155423 - 2¹ = 8155421 is a prime.

It is a Duffinian number.

8155423 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8155391 and 8155400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8155421) 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, 94788 + ... + 94873.

It is an arithmetic number, because the mean of its divisors is an integer number (2086282).

Almost surely, 2^8155423 is an apocalyptic number.

8155423 is a deficient number, since it is larger than the sum of its proper divisors (189705).

8155423 is a wasteful number, since it uses less digits than its factorization.

8155423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189704.

The product of its digits is 4800, while the sum is 28.

The square root of 8155423 is about 2855.7701238020. The cubic root of 8155423 is about 201.2868934330.

The spelling of 8155423 in words is "eight million, one hundred fifty-five thousand, four hundred twenty-three".