16752649 has 3 divisors (see below), whose sum is σ = 16756743. Its totient is φ = 16748556.

The previous prime is 16752647. The next prime is 16752653. The reversal of 16752649 is 94625761.

The square root of 16752649 is 4093.

It is a perfect power (a square), and thus also a powerful number.

16752649 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 brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 94625761 = 37 ⋅2557453.

It can be written as a sum of positive squares in only one way, i.e., 6943225 + 9809424 = 2635^2 + 3132^2 .

It is not a de Polignac number, because 16752649 - 2¹ = 16752647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16752643) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2047 + ... + 6139.

It is an arithmetic number, because the mean of its divisors is an integer number (5585581).

Almost surely, 2^16752649 is an apocalyptic number.

16752649 is the 4093-rd square number.

16752649 is the 2047-th centered octagonal number.

It is an amenable number.

16752649 is a deficient number, since it is larger than the sum of its proper divisors (4094).

16752649 is an frugal number, since it uses more digits than its factorization.

16752649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8186 (or 4093 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The cubic root of 16752649 is about 255.8749847362.

The spelling of 16752649 in words is "sixteen million, seven hundred fifty-two thousand, six hundred forty-nine".