16427417 has 2 divisors, whose sum is σ = 16427418. Its totient is φ = 16427416.

The previous prime is 16427413. The next prime is 16427449. The reversal of 16427417 is 71472461.

It is an a-pointer prime, because the next prime (16427449) can be obtained adding 16427417 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9853321 + 6574096 = 3139^2 + 2564^2 .

It is a cyclic number.

It is not a de Polignac number, because 16427417 - 2² = 16427413 is a prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (16427413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8213708 + 8213709.

It is an arithmetic number, because the mean of its divisors is an integer number (8213709).

Almost surely, 2^16427417 is an apocalyptic number.

It is an amenable number.

16427417 is a deficient number, since it is larger than the sum of its proper divisors (1).

16427417 is an equidigital number, since it uses as much as digits as its factorization.

16427417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9408, while the sum is 32.

The square root of 16427417 is about 4053.0750054742. The cubic root of 16427417 is about 254.2083200150.

Adding to 16427417 its reverse (71472461), we get a palindrome (87899878).

The spelling of 16427417 in words is "sixteen million, four hundred twenty-seven thousand, four hundred seventeen".