20462417 has 2 divisors, whose sum is σ = 20462418. Its totient is φ = 20462416.

The previous prime is 20462363. The next prime is 20462419. The reversal of 20462417 is 71426402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18800896 + 1661521 = 4336^2 + 1289^2 .

It is a cyclic number.

It is not a de Polignac number, because 20462417 - 2⁶ = 20462353 is a prime.

Together with 20462419, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20462419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10231208 + 10231209.

It is an arithmetic number, because the mean of its divisors is an integer number (10231209).

Almost surely, 2^20462417 is an apocalyptic number.

It is an amenable number.

20462417 is a deficient number, since it is larger than the sum of its proper divisors (1).

20462417 is an equidigital number, since it uses as much as digits as its factorization.

20462417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 20462417 is about 4523.5403170526. The cubic root of 20462417 is about 273.5178308546.

Adding to 20462417 its reverse (71426402), we get a palindrome (91888819).

The spelling of 20462417 in words is "twenty million, four hundred sixty-two thousand, four hundred seventeen".