16487473 has 2 divisors, whose sum is σ = 16487474. Its totient is φ = 16487472.

The previous prime is 16487461. The next prime is 16487479. The reversal of 16487473 is 37478461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16459249 + 28224 = 4057^2 + 168^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16487473 is a prime.

It is a super-3 number, since 3×16487473³ (a number of 23 digits) contains 333 as substring.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (16487479) 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, 8243736 + 8243737.

It is an arithmetic number, because the mean of its divisors is an integer number (8243737).

Almost surely, 2^16487473 is an apocalyptic number.

It is an amenable number.

16487473 is a deficient number, since it is larger than the sum of its proper divisors (1).

16487473 is an equidigital number, since it uses as much as digits as its factorization.

16487473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 40.

The square root of 16487473 is about 4060.4769424293. The cubic root of 16487473 is about 254.5177248820.

The spelling of 16487473 in words is "sixteen million, four hundred eighty-seven thousand, four hundred seventy-three".