22720463 has 2 divisors, whose sum is σ = 22720464. Its totient is φ = 22720462.

The previous prime is 22720459. The next prime is 22720499. The reversal of 22720463 is 36402722.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22720463 - 2² = 22720459 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22720363) 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, 11360231 + 11360232.

It is an arithmetic number, because the mean of its divisors is an integer number (11360232).

Almost surely, 2^22720463 is an apocalyptic number.

22720463 is a deficient number, since it is larger than the sum of its proper divisors (1).

22720463 is an equidigital number, since it uses as much as digits as its factorization.

22720463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 22720463 is about 4766.5986824989. The cubic root of 22720463 is about 283.2298739526.

The spelling of 22720463 in words is "twenty-two million, seven hundred twenty thousand, four hundred sixty-three".