8778423 has 4 divisors (see below), whose sum is σ = 11704568. Its totient is φ = 5852280.

The previous prime is 8778421. The next prime is 8778431. The reversal of 8778423 is 3248778.

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

It is not a de Polignac number, because 8778423 - 2¹ = 8778421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8778421) 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, 1463068 + ... + 1463073.

It is an arithmetic number, because the mean of its divisors is an integer number (2926142).

Almost surely, 2^8778423 is an apocalyptic number.

8778423 is a deficient number, since it is larger than the sum of its proper divisors (2926145).

8778423 is a wasteful number, since it uses less digits than its factorization.

8778423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2926144.

The product of its digits is 75264, while the sum is 39.

The square root of 8778423 is about 2962.8403601949. The cubic root of 8778423 is about 206.2871462938.

The spelling of 8778423 in words is "eight million, seven hundred seventy-eight thousand, four hundred twenty-three".