16974487 has 2 divisors, whose sum is σ = 16974488. Its totient is φ = 16974486.

The previous prime is 16974479. The next prime is 16974499. The reversal of 16974487 is 78447961.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16974487 - 2³ = 16974479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16974427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8487243 + 8487244.

It is an arithmetic number, because the mean of its divisors is an integer number (8487244).

Almost surely, 2^16974487 is an apocalyptic number.

16974487 is a deficient number, since it is larger than the sum of its proper divisors (1).

16974487 is an equidigital number, since it uses as much as digits as its factorization.

16974487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 46.

The square root of 16974487 is about 4120.0105582389. The cubic root of 16974487 is about 256.9994650425. Note that the first 3 decimals are identical.

The spelling of 16974487 in words is "sixteen million, nine hundred seventy-four thousand, four hundred eighty-seven".