22647379 has 4 divisors (see below), whose sum is σ = 22731840. Its totient is φ = 22562920.

The previous prime is 22647343. The next prime is 22647389. The reversal of 22647379 is 97374622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97374622 = 2 ⋅48687311.

It is a cyclic number.

It is not a de Polignac number, because 22647379 - 2¹³ = 22639187 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22647319) 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, 41827 + ... + 42364.

It is an arithmetic number, because the mean of its divisors is an integer number (5682960).

Almost surely, 2^22647379 is an apocalyptic number.

22647379 is a deficient number, since it is larger than the sum of its proper divisors (84461).

22647379 is an equidigital number, since it uses as much as digits as its factorization.

22647379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84460.

The product of its digits is 127008, while the sum is 40.

The square root of 22647379 is about 4758.9262444379. The cubic root of 22647379 is about 282.9258630359.

The spelling of 22647379 in words is "twenty-two million, six hundred forty-seven thousand, three hundred seventy-nine".