17208427097 has 4 divisors (see below), whose sum is σ = 17608623120. Its totient is φ = 16808231076.

The previous prime is 17208427087. The next prime is 17208427111. The reversal of 17208427097 is 79072480271.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17208427097 is a prime.

It is a super-2 number, since 2×17208427097² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17208427037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200097947 + ... + 200098032.

It is an arithmetic number, because the mean of its divisors is an integer number (4402155780).

Almost surely, 2^17208427097 is an apocalyptic number.

It is an amenable number.

17208427097 is a deficient number, since it is larger than the sum of its proper divisors (400196023).

17208427097 is an equidigital number, since it uses as much as digits as its factorization.

17208427097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400196022.

The product of its (nonzero) digits is 395136, while the sum is 47.

The spelling of 17208427097 in words is "seventeen billion, two hundred eight million, four hundred twenty-seven thousand, ninety-seven".