16772903 has 4 divisors (see below), whose sum is σ = 19169040. Its totient is φ = 14376768.

The previous prime is 16772893. The next prime is 16772923. The reversal of 16772903 is 30927761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30927761 = 113 ⋅273697.

It is not a de Polignac number, because 16772903 - 2¹⁶ = 16707367 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 (16772923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1198058 + ... + 1198071.

It is an arithmetic number, because the mean of its divisors is an integer number (4792260).

Almost surely, 2^16772903 is an apocalyptic number.

16772903 is a deficient number, since it is larger than the sum of its proper divisors (2396137).

16772903 is an equidigital number, since it uses as much as digits as its factorization.

16772903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396136.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 16772903 is about 4095.4734769011. The cubic root of 16772903 is about 255.9780610675.

The spelling of 16772903 in words is "sixteen million, seven hundred seventy-two thousand, nine hundred three".