16980311 has 4 divisors (see below), whose sum is σ = 17212992. Its totient is φ = 16747632.

The previous prime is 16980307. The next prime is 16980317. The reversal of 16980311 is 11308961.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11308961 = 17 ⋅665233.

It is a cyclic number.

It is not a de Polignac number, because 16980311 - 2² = 16980307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16980317) 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 in 3 ways as a sum of consecutive naturals, for example, 116231 + ... + 116376.

It is an arithmetic number, because the mean of its divisors is an integer number (4303248).

Almost surely, 2^16980311 is an apocalyptic number.

16980311 is a deficient number, since it is larger than the sum of its proper divisors (232681).

16980311 is an equidigital number, since it uses as much as digits as its factorization.

16980311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232680.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 16980311 is about 4120.7172919287. The cubic root of 16980311 is about 257.0288541238.

The spelling of 16980311 in words is "sixteen million, nine hundred eighty thousand, three hundred eleven".