20296277 has 2 divisors, whose sum is σ = 20296278. Its totient is φ = 20296276.

The previous prime is 20296267. The next prime is 20296279. The reversal of 20296277 is 77269202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19061956 + 1234321 = 4366^2 + 1111^2 .

It is a cyclic number.

It is not a de Polignac number, because 20296277 - 2⁴ = 20296261 is a prime.

Together with 20296279, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20296279) 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, 10148138 + 10148139.

It is an arithmetic number, because the mean of its divisors is an integer number (10148139).

Almost surely, 2^20296277 is an apocalyptic number.

It is an amenable number.

20296277 is a deficient number, since it is larger than the sum of its proper divisors (1).

20296277 is an equidigital number, since it uses as much as digits as its factorization.

20296277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 20296277 is about 4505.1389545718. The cubic root of 20296277 is about 272.7755627858.

The spelling of 20296277 in words is "twenty million, two hundred ninety-six thousand, two hundred seventy-seven".