16980503 has 2 divisors, whose sum is σ = 16980504. Its totient is φ = 16980502.

The previous prime is 16980499. The next prime is 16980517. The reversal of 16980503 is 30508961.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16980503 - 2² = 16980499 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16980503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16980203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8490251 + 8490252.

It is an arithmetic number, because the mean of its divisors is an integer number (8490252).

Almost surely, 2^16980503 is an apocalyptic number.

16980503 is a deficient number, since it is larger than the sum of its proper divisors (1).

16980503 is an equidigital number, since it uses as much as digits as its factorization.

16980503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 16980503 is about 4120.7405887777. The cubic root of 16980503 is about 257.0298228802.

The spelling of 16980503 in words is "sixteen million, nine hundred eighty thousand, five hundred three".