8490423 has 4 divisors (see below), whose sum is σ = 11320568. Its totient is φ = 5660280.

The previous prime is 8490421. The next prime is 8490439. The reversal of 8490423 is 3240948.

It is a happy number.

8490423 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 8490423 - 2¹ = 8490421 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 (8490421) 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, 1415068 + ... + 1415073.

It is an arithmetic number, because the mean of its divisors is an integer number (2830142).

Almost surely, 2^8490423 is an apocalyptic number.

8490423 is a deficient number, since it is larger than the sum of its proper divisors (2830145).

8490423 is a wasteful number, since it uses less digits than its factorization.

8490423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830144.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 8490423 is about 2913.8330425747. The cubic root of 8490423 is about 204.0060792114.

The spelling of 8490423 in words is "eight million, four hundred ninety thousand, four hundred twenty-three".