8244427 has 4 divisors (see below), whose sum is σ = 8268400. Its totient is φ = 8220456.

The previous prime is 8244409. The next prime is 8244463. The reversal of 8244427 is 7244428.

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 8244427 - 2¹⁵ = 8211659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8244407) 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, 11463 + ... + 12160.

It is an arithmetic number, because the mean of its divisors is an integer number (2067100).

Almost surely, 2^8244427 is an apocalyptic number.

8244427 is a deficient number, since it is larger than the sum of its proper divisors (23973).

8244427 is a wasteful number, since it uses less digits than its factorization.

8244427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23972.

The product of its digits is 14336, while the sum is 31.

The square root of 8244427 is about 2871.3110246018. The cubic root of 8244427 is about 202.0164921345.

Subtracting from 8244427 its reverse (7244428), we obtain a palindrome (999999).

The spelling of 8244427 in words is "eight million, two hundred forty-four thousand, four hundred twenty-seven".