16089473 has 4 divisors (see below), whose sum is σ = 16099140. Its totient is φ = 16079808.

The previous prime is 16089457. The next prime is 16089481. The reversal of 16089473 is 37498061.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 37498061 = 79 ⋅474659.

It can be written as a sum of positive squares in 2 ways, for example, as 2598544 + 13490929 = 1612^2 + 3673^2 .

It is a cyclic number.

It is not a de Polignac number, because 16089473 - 2⁴ = 16089457 is a prime.

It is a super-2 number, since 2×16089473² = 517742282835458, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16089373) 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, 1628 + ... + 5901.

It is an arithmetic number, because the mean of its divisors is an integer number (4024785).

Almost surely, 2^16089473 is an apocalyptic number.

It is an amenable number.

16089473 is a deficient number, since it is larger than the sum of its proper divisors (9667).

16089473 is an equidigital number, since it uses as much as digits as its factorization.

16089473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9666.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 16089473 is about 4011.1685329839. The cubic root of 16089473 is about 252.4530409683.

The spelling of 16089473 in words is "sixteen million, eighty-nine thousand, four hundred seventy-three".