16807445 has 4 divisors (see below), whose sum is σ = 20168940. Its totient is φ = 13445952.

The previous prime is 16807429. The next prime is 16807451. The reversal of 16807445 is 54470861.

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 13147876 + 3659569 = 3626^2 + 1913^2 .

It is a cyclic number.

It is not a de Polignac number, because 16807445 - 2⁴ = 16807429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1680740 + ... + 1680749.

It is an arithmetic number, because the mean of its divisors is an integer number (5042235).

Almost surely, 2^16807445 is an apocalyptic number.

It is an amenable number.

16807445 is a deficient number, since it is larger than the sum of its proper divisors (3361495).

16807445 is an equidigital number, since it uses as much as digits as its factorization.

16807445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3361494.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 16807445 is about 4099.6884027936. The cubic root of 16807445 is about 256.1536603939.

The spelling of 16807445 in words is "sixteen million, eight hundred seven thousand, four hundred forty-five".