16786045 has 4 divisors (see below), whose sum is σ = 20143260. Its totient is φ = 13428832.

The previous prime is 16786027. The next prime is 16786061. The reversal of 16786045 is 54068761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54068761 = 911 ⋅59351.

It can be written as a sum of positive squares in 2 ways, for example, as 12467961 + 4318084 = 3531^2 + 2078^2 .

It is a cyclic number.

It is not a de Polignac number, because 16786045 - 2¹³ = 16777853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16785995 and 16786013.

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, 1678600 + ... + 1678609.

It is an arithmetic number, because the mean of its divisors is an integer number (5035815).

Almost surely, 2^16786045 is an apocalyptic number.

It is an amenable number.

16786045 is a deficient number, since it is larger than the sum of its proper divisors (3357215).

16786045 is an equidigital number, since it uses as much as digits as its factorization.

16786045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3357214.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 16786045 is about 4097.0776170339. The cubic root of 16786045 is about 256.0448987412.

The spelling of 16786045 in words is "sixteen million, seven hundred eighty-six thousand, forty-five".