22647641 has 8 divisors (see below), whose sum is σ = 23038080. Its totient is φ = 22259952.

The previous prime is 22647631. The next prime is 22647643. The reversal of 22647641 is 14674622.

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 22647641 - 2¹⁸ = 22385497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22647598 and 22647607.

It is not an unprimeable number, because it can be changed into a prime (22647643) 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, 21851 + ... + 22863.

It is an arithmetic number, because the mean of its divisors is an integer number (2879760).

Almost surely, 2^22647641 is an apocalyptic number.

It is an amenable number.

22647641 is a deficient number, since it is larger than the sum of its proper divisors (390439).

22647641 is a wasteful number, since it uses less digits than its factorization.

22647641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375.

The product of its digits is 16128, while the sum is 32.

The square root of 22647641 is about 4758.9537715763. The cubic root of 22647641 is about 282.9269540568.

The spelling of 22647641 in words is "twenty-two million, six hundred forty-seven thousand, six hundred forty-one".