20514677 has 2 divisors, whose sum is σ = 20514678. Its totient is φ = 20514676.

The previous prime is 20514619. The next prime is 20514707. The reversal of 20514677 is 77641502.

20514677 = 2614² + 2615² + 2616².

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10491121 + 10023556 = 3239^2 + 3166^2 .

It is a cyclic number.

It is not a de Polignac number, because 20514677 - 2⁸ = 20514421 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 (20514617) 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, 10257338 + 10257339.

It is an arithmetic number, because the mean of its divisors is an integer number (10257339).

Almost surely, 2^20514677 is an apocalyptic number.

It is an amenable number.

20514677 is a deficient number, since it is larger than the sum of its proper divisors (1).

20514677 is an equidigital number, since it uses as much as digits as its factorization.

20514677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 20514677 is about 4529.3130825767. The cubic root of 20514677 is about 273.7504832390.

The spelling of 20514677 in words is "twenty million, five hundred fourteen thousand, six hundred seventy-seven".