17239961 has 2 divisors, whose sum is σ = 17239962. Its totient is φ = 17239960.

The previous prime is 17239931. The next prime is 17239987. The reversal of 17239961 is 16993271.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10686361 + 6553600 = 3269^2 + 2560^2 .

It is a cyclic number.

It is not a de Polignac number, because 17239961 - 2²² = 13045657 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (17239931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8619980 + 8619981.

It is an arithmetic number, because the mean of its divisors is an integer number (8619981).

Almost surely, 2^17239961 is an apocalyptic number.

It is an amenable number.

17239961 is a deficient number, since it is larger than the sum of its proper divisors (1).

17239961 is an equidigital number, since it uses as much as digits as its factorization.

17239961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412, while the sum is 38.

The square root of 17239961 is about 4152.1032019929. The cubic root of 17239961 is about 258.3323291902.

The spelling of 17239961 in words is "seventeen million, two hundred thirty-nine thousand, nine hundred sixty-one".