8402423 has 4 divisors (see below), whose sum is σ = 8417760. Its totient is φ = 8387088.

The previous prime is 8402419. The next prime is 8402453. The reversal of 8402423 is 3242048.

8402423 is digitally balanced in base 2, because in such base 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 a cyclic number.

It is not a de Polignac number, because 8402423 - 2² = 8402419 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 (8402413) 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, 6815 + ... + 7952.

It is an arithmetic number, because the mean of its divisors is an integer number (2104440).

Almost surely, 2^8402423 is an apocalyptic number.

8402423 is a deficient number, since it is larger than the sum of its proper divisors (15337).

8402423 is a wasteful number, since it uses less digits than its factorization.

8402423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15336.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 8402423 is about 2898.6933263110. The cubic root of 8402423 is about 203.2988149472.

The spelling of 8402423 in words is "eight million, four hundred two thousand, four hundred twenty-three".