22780801 has 2 divisors, whose sum is σ = 22780802. Its totient is φ = 22780800.

The previous prime is 22780783. The next prime is 22780811. The reversal of 22780801 is 10808722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22657600 + 123201 = 4760^2 + 351^2 .

It is a cyclic number.

It is not a de Polignac number, because 22780801 - 2¹¹ = 22778753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22780801.

It is not a weakly prime, because it can be changed into another prime (22780811) 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 as a sum of consecutive naturals, namely, 11390400 + 11390401.

It is an arithmetic number, because the mean of its divisors is an integer number (11390401).

Almost surely, 2^22780801 is an apocalyptic number.

It is an amenable number.

22780801 is a deficient number, since it is larger than the sum of its proper divisors (1).

22780801 is an equidigital number, since it uses as much as digits as its factorization.

22780801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 22780801 is about 4772.9237370819. The cubic root of 22780801 is about 283.4803738123.

The spelling of 22780801 in words is "twenty-two million, seven hundred eighty thousand, eight hundred one".