22423647 has 8 divisors (see below), whose sum is σ = 29928240. Its totient is φ = 14934080.

The previous prime is 22423613. The next prime is 22423649. The reversal of 22423647 is 74632422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22423647 - 2¹¹ = 22421599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22423649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379 + ... + 6707.

It is an arithmetic number, because the mean of its divisors is an integer number (3741030).

Almost surely, 2^22423647 is an apocalyptic number.

22423647 is a deficient number, since it is larger than the sum of its proper divisors (7504593).

22423647 is a wasteful number, since it uses less digits than its factorization.

22423647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7513.

The product of its digits is 16128, while the sum is 30.

The square root of 22423647 is about 4735.3613378495. The cubic root of 22423647 is about 281.9911093218.

It can be divided in two parts, 224 and 23647, that added together give a triangular number (23871 = T₂₁₈).

The spelling of 22423647 in words is "twenty-two million, four hundred twenty-three thousand, six hundred forty-seven".