16749073 has 4 divisors (see below), whose sum is σ = 18271728. Its totient is φ = 15226420.

The previous prime is 16749067. The next prime is 16749107. The reversal of 16749073 is 37094761.

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, and also an emirpimes, since its reverse is a distinct semiprime: 37094761 = 11 ⋅3372251.

It is a de Polignac number, because none of the positive numbers 2^k-16749073 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (16749053) 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 3 ways as a sum of consecutive naturals, for example, 761311 + ... + 761332.

It is an arithmetic number, because the mean of its divisors is an integer number (4567932).

Almost surely, 2^16749073 is an apocalyptic number.

It is an amenable number.

16749073 is a deficient number, since it is larger than the sum of its proper divisors (1522655).

16749073 is a wasteful number, since it uses less digits than its factorization.

16749073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522654.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 16749073 is about 4092.5631332943. The cubic root of 16749073 is about 255.8567771867.

The spelling of 16749073 in words is "sixteen million, seven hundred forty-nine thousand, seventy-three".