22808641 has 2 divisors, whose sum is σ = 22808642. Its totient is φ = 22808640.

The previous prime is 22808581. The next prime is 22808651. The reversal of 22808641 is 14680822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17048641 + 5760000 = 4129^2 + 2400^2 .

It is a cyclic number.

It is not a de Polignac number, because 22808641 - 2⁹ = 22808129 is a prime.

It is not a weakly prime, because it can be changed into another prime (22808651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11404320 + 11404321.

It is an arithmetic number, because the mean of its divisors is an integer number (11404321).

Almost surely, 2^22808641 is an apocalyptic number.

It is an amenable number.

22808641 is a deficient number, since it is larger than the sum of its proper divisors (1).

22808641 is an equidigital number, since it uses as much as digits as its factorization.

22808641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 22808641 is about 4775.8392979664. The cubic root of 22808641 is about 283.5958055284.

The spelling of 22808641 in words is "twenty-two million, eight hundred eight thousand, six hundred forty-one".