8278423 has 4 divisors (see below), whose sum is σ = 8338120. Its totient is φ = 8218728.

The previous prime is 8278421. The next prime is 8278477. The reversal of 8278423 is 3248728.

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 8278423 - 2¹ = 8278421 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8278421) 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, 29640 + ... + 29917.

It is an arithmetic number, because the mean of its divisors is an integer number (2084530).

Almost surely, 2^8278423 is an apocalyptic number.

8278423 is a deficient number, since it is larger than the sum of its proper divisors (59697).

8278423 is a wasteful number, since it uses less digits than its factorization.

8278423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59696.

The product of its digits is 21504, while the sum is 34.

The square root of 8278423 is about 2877.2248782464. The cubic root of 8278423 is about 202.2937838726.

The spelling of 8278423 in words is "eight million, two hundred seventy-eight thousand, four hundred twenty-three".