16959481 has 12 divisors (see below), whose sum is σ = 21305536. Its totient is φ = 13214520.

The previous prime is 16959469. The next prime is 16959497. The reversal of 16959481 is 18495961.

It is not a de Polignac number, because 16959481 - 2⁹ = 16958969 is a prime.

It is a super-2 number, since 2×16959481² = 575247991578722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16959581) 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 in 11 ways as a sum of consecutive naturals, for example, 9165 + ... + 10858.

Almost surely, 2^16959481 is an apocalyptic number.

16959481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16959481 is a deficient number, since it is larger than the sum of its proper divisors (4346055).

16959481 is a wasteful number, since it uses less digits than its factorization.

16959481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20052 (or 20041 counting only the distinct ones).

The product of its digits is 77760, while the sum is 43.

The square root of 16959481 is about 4118.1890437424. The cubic root of 16959481 is about 256.9237107460.

The spelling of 16959481 in words is "sixteen million, nine hundred fifty-nine thousand, four hundred eighty-one".