20622983 has 2 divisors, whose sum is σ = 20622984. Its totient is φ = 20622982.

The previous prime is 20622977. The next prime is 20623003. The reversal of 20622983 is 38922602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20622983 - 2¹⁰ = 20621959 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 (20622083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10311491 + 10311492.

It is an arithmetic number, because the mean of its divisors is an integer number (10311492).

Almost surely, 2^20622983 is an apocalyptic number.

20622983 is a deficient number, since it is larger than the sum of its proper divisors (1).

20622983 is an equidigital number, since it uses as much as digits as its factorization.

20622983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 20622983 is about 4541.2534613254. The cubic root of 20622983 is about 274.2313876495.

The spelling of 20622983 in words is "twenty million, six hundred twenty-two thousand, nine hundred eighty-three".