22720627 has 4 divisors (see below), whose sum is σ = 23334736. Its totient is φ = 22106520.

The previous prime is 22720597. The next prime is 22720631. The reversal of 22720627 is 72602722.

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 22720627 - 2⁷ = 22720499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22720595 and 22720604.

It is not an unprimeable number, because it can be changed into a prime (22720127) 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 3 ways as a sum of consecutive naturals, for example, 306999 + ... + 307072.

It is an arithmetic number, because the mean of its divisors is an integer number (5833684).

Almost surely, 2^22720627 is an apocalyptic number.

22720627 is a deficient number, since it is larger than the sum of its proper divisors (614109).

22720627 is an equidigital number, since it uses as much as digits as its factorization.

22720627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614108.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 22720627 is about 4766.6158855104. The cubic root of 22720627 is about 283.2305554174.

The spelling of 22720627 in words is "twenty-two million, seven hundred twenty thousand, six hundred twenty-seven".