22780783 has 2 divisors, whose sum is σ = 22780784. Its totient is φ = 22780782.

The previous prime is 22780781. The next prime is 22780801. The reversal of 22780783 is 38708722.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22780783 - 2¹ = 22780781 is a prime.

Together with 22780781, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22780781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11390391 + 11390392.

It is an arithmetic number, because the mean of its divisors is an integer number (11390392).

Almost surely, 2^22780783 is an apocalyptic number.

22780783 is a deficient number, since it is larger than the sum of its proper divisors (1).

22780783 is an equidigital number, since it uses as much as digits as its factorization.

22780783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 22780783 is about 4772.9218514449. The cubic root of 22780783 is about 283.4802991493.

The spelling of 22780783 in words is "twenty-two million, seven hundred eighty thousand, seven hundred eighty-three".