16930465 has 4 divisors (see below), whose sum is σ = 20316564. Its totient is φ = 13544368.

The previous prime is 16930457. The next prime is 16930469. The reversal of 16930465 is 56403961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56403961 = 73 ⋅772657.

It can be written as a sum of positive squares in 2 ways, for example, as 8503056 + 8427409 = 2916^2 + 2903^2 .

It is a cyclic number.

It is not a de Polignac number, because 16930465 - 2³ = 16930457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16930465.

It is not an unprimeable number, because it can be changed into a prime (16930469) 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, 1693042 + ... + 1693051.

It is an arithmetic number, because the mean of its divisors is an integer number (5079141).

Almost surely, 2^16930465 is an apocalyptic number.

It is an amenable number.

16930465 is a deficient number, since it is larger than the sum of its proper divisors (3386099).

16930465 is an equidigital number, since it uses as much as digits as its factorization.

16930465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3386098.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 16930465 is about 4114.6646278889. The cubic root of 16930465 is about 256.7771033907. Note that the first 3 decimals are identical.

The spelling of 16930465 in words is "sixteen million, nine hundred thirty thousand, four hundred sixty-five".