16897963 has 2 divisors, whose sum is σ = 16897964. Its totient is φ = 16897962.

The previous prime is 16897913. The next prime is 16897987. The reversal of 16897963 is 36979861.

It is a strong prime.

It is an emirp because it is prime and its reverse (36979861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16897963 - 2¹⁷ = 16766891 is a prime.

It is not a weakly prime, because it can be changed into another prime (16897913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8448981 + 8448982.

It is an arithmetic number, because the mean of its divisors is an integer number (8448982).

Almost surely, 2^16897963 is an apocalyptic number.

16897963 is a deficient number, since it is larger than the sum of its proper divisors (1).

16897963 is an equidigital number, since it uses as much as digits as its factorization.

16897963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 49.

The square root of 16897963 is about 4110.7131984608. The cubic root of 16897963 is about 256.6126834989.

The spelling of 16897963 in words is "sixteen million, eight hundred ninety-seven thousand, nine hundred sixty-three".