16722049 has 4 divisors (see below), whose sum is σ = 16730560. Its totient is φ = 16713540.

The previous prime is 16722023. The next prime is 16722059. The reversal of 16722049 is 94022761.

16722049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 16722049 - 2¹⁹ = 16197761 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 16722049.

It is not an unprimeable number, because it can be changed into a prime (16722059) 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, 364 + ... + 5794.

It is an arithmetic number, because the mean of its divisors is an integer number (4182640).

Almost surely, 2^16722049 is an apocalyptic number.

It is an amenable number.

16722049 is a deficient number, since it is larger than the sum of its proper divisors (8511).

16722049 is an equidigital number, since it uses as much as digits as its factorization.

16722049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8510.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 16722049 is about 4089.2602020414. The cubic root of 16722049 is about 255.7190980144.

It can be divided in two parts, 1672 and 2049, that added together give a square (3721 = 61²).

The spelling of 16722049 in words is "sixteen million, seven hundred twenty-two thousand, forty-nine".