16290973 has 4 divisors (see below), whose sum is σ = 16354620. Its totient is φ = 16227328.

The previous prime is 16290959. The next prime is 16290977. The reversal of 16290973 is 37909261.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14915044 + 1375929 = 3862^2 + 1173^2 .

It is a cyclic number.

It is not a de Polignac number, because 16290973 - 2⁵ = 16290941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16290977) 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, 31438 + ... + 31951.

It is an arithmetic number, because the mean of its divisors is an integer number (4088655).

Almost surely, 2^16290973 is an apocalyptic number.

It is an amenable number.

16290973 is a deficient number, since it is larger than the sum of its proper divisors (63647).

16290973 is an equidigital number, since it uses as much as digits as its factorization.

16290973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63646.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 16290973 is about 4036.2077498563. The cubic root of 16290973 is about 253.5025552588.

The spelling of 16290973 in words is "sixteen million, two hundred ninety thousand, nine hundred seventy-three".