16654749 has 4 divisors (see below), whose sum is σ = 22206336. Its totient is φ = 11103164.

The previous prime is 16654741. The next prime is 16654751. The reversal of 16654749 is 94745661.

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.

It is a cyclic number.

It is not a de Polignac number, because 16654749 - 2³ = 16654741 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16654749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16654741) 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, 2775789 + ... + 2775794.

It is an arithmetic number, because the mean of its divisors is an integer number (5551584).

Almost surely, 2^16654749 is an apocalyptic number.

It is an amenable number.

16654749 is a deficient number, since it is larger than the sum of its proper divisors (5551587).

16654749 is an equidigital number, since it uses as much as digits as its factorization.

16654749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5551586.

The product of its digits is 181440, while the sum is 42.

The square root of 16654749 is about 4081.0230335052. The cubic root of 16654749 is about 255.3755788110.

The spelling of 16654749 in words is "sixteen million, six hundred fifty-four thousand, seven hundred forty-nine".