20022677 has 2 divisors, whose sum is σ = 20022678. Its totient is φ = 20022676.

The previous prime is 20022631. The next prime is 20022689. The reversal of 20022677 is 77622002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10817521 + 9205156 = 3289^2 + 3034^2 .

It is a cyclic number.

It is not a de Polignac number, because 20022677 - 2¹⁶ = 19957141 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 (20022577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011338 + 10011339.

It is an arithmetic number, because the mean of its divisors is an integer number (10011339).

Almost surely, 2^20022677 is an apocalyptic number.

It is an amenable number.

20022677 is a deficient number, since it is larger than the sum of its proper divisors (1).

20022677 is an equidigital number, since it uses as much as digits as its factorization.

20022677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 20022677 is about 4474.6706024019. The cubic root of 20022677 is about 271.5443143233.

Adding to 20022677 its reverse (77622002), we get a palindrome (97644679).

The spelling of 20022677 in words is "twenty million, twenty-two thousand, six hundred seventy-seven".