16487273 has 4 divisors (see below), whose sum is σ = 17986128. Its totient is φ = 14988420.

The previous prime is 16487249. The next prime is 16487291. The reversal of 16487273 is 37278461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16487273 - 2⁶ = 16487209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16487213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 749411 + ... + 749432.

It is an arithmetic number, because the mean of its divisors is an integer number (4496532).

Almost surely, 2^16487273 is an apocalyptic number.

It is an amenable number.

16487273 is a deficient number, since it is larger than the sum of its proper divisors (1498855).

16487273 is a wasteful number, since it uses less digits than its factorization.

16487273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498854.

The product of its digits is 56448, while the sum is 38.

The square root of 16487273 is about 4060.4523147058. The cubic root of 16487273 is about 254.5166957421.

The spelling of 16487273 in words is "sixteen million, four hundred eighty-seven thousand, two hundred seventy-three".