16732649 has 2 divisors, whose sum is σ = 16732650. Its totient is φ = 16732648.

The previous prime is 16732643. The next prime is 16732657. The reversal of 16732649 is 94623761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12652249 + 4080400 = 3557^2 + 2020^2 .

It is an emirp because it is prime and its reverse (94623761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16732649 - 2⁸ = 16732393 is a prime.

It is not a weakly prime, because it can be changed into another prime (16732643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8366324 + 8366325.

It is an arithmetic number, because the mean of its divisors is an integer number (8366325).

Almost surely, 2^16732649 is an apocalyptic number.

It is an amenable number.

16732649 is a deficient number, since it is larger than the sum of its proper divisors (1).

16732649 is an equidigital number, since it uses as much as digits as its factorization.

16732649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 38.

The square root of 16732649 is about 4090.5560746676. The cubic root of 16732649 is about 255.7731195021.

The spelling of 16732649 in words is "sixteen million, seven hundred thirty-two thousand, six hundred forty-nine".