17914979 has 2 divisors, whose sum is σ = 17914980. Its totient is φ = 17914978.

The previous prime is 17914973. The next prime is 17914987. The reversal of 17914979 is 97941971.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 17914979 - 2¹² = 17910883 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (17914973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8957489 + 8957490.

It is an arithmetic number, because the mean of its divisors is an integer number (8957490).

Almost surely, 2^17914979 is an apocalyptic number.

17914979 is a deficient number, since it is larger than the sum of its proper divisors (1).

17914979 is an equidigital number, since it uses as much as digits as its factorization.

17914979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142884, while the sum is 47.

The square root of 17914979 is about 4232.6090062750. The cubic root of 17914979 is about 261.6608620203.

The spelling of 17914979 in words is "seventeen million, nine hundred fourteen thousand, nine hundred seventy-nine".