16507073 has 4 divisors (see below), whose sum is σ = 18007728. Its totient is φ = 15006420.

The previous prime is 16507063. The next prime is 16507081. The reversal of 16507073 is 37070561.

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: 37070561 = 11 ⋅3370051.

It is not a de Polignac number, because 16507073 - 2⁸ = 16506817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16507033) 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, 750311 + ... + 750332.

It is an arithmetic number, because the mean of its divisors is an integer number (4501932).

Almost surely, 2^16507073 is an apocalyptic number.

It is an amenable number.

16507073 is a deficient number, since it is larger than the sum of its proper divisors (1500655).

16507073 is a wasteful number, since it uses less digits than its factorization.

16507073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500654.

The product of its (nonzero) digits is 4410, while the sum is 29.

The square root of 16507073 is about 4062.8897351516. The cubic root of 16507073 is about 254.6185402495.

The spelling of 16507073 in words is "sixteen million, five hundred seven thousand, seventy-three".