17428049 has 2 divisors, whose sum is σ = 17428050. Its totient is φ = 17428048.

The previous prime is 17428031. The next prime is 17428051. The reversal of 17428049 is 94082471.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10368400 + 7059649 = 3220^2 + 2657^2 .

It is a cyclic number.

It is not a de Polignac number, because 17428049 - 2²⁴ = 650833 is a prime.

Together with 17428051, 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 (17428849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8714024 + 8714025.

It is an arithmetic number, because the mean of its divisors is an integer number (8714025).

Almost surely, 2^17428049 is an apocalyptic number.

It is an amenable number.

17428049 is a deficient number, since it is larger than the sum of its proper divisors (1).

17428049 is an equidigital number, since it uses as much as digits as its factorization.

17428049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 17428049 is about 4174.6914856071. The cubic root of 17428049 is about 259.2684019116.

The spelling of 17428049 in words is "seventeen million, four hundred twenty-eight thousand, forty-nine".