16672349 has 2 divisors, whose sum is σ = 16672350. Its totient is φ = 16672348.

The previous prime is 16672343. The next prime is 16672387. The reversal of 16672349 is 94327661.

It is an a-pointer prime, because the next prime (16672387) can be obtained adding 16672349 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13557124 + 3115225 = 3682^2 + 1765^2 .

It is an emirp because it is prime and its reverse (94327661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16672349 - 2¹⁶ = 16606813 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16672343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8336174 + 8336175.

It is an arithmetic number, because the mean of its divisors is an integer number (8336175).

Almost surely, 2^16672349 is an apocalyptic number.

It is an amenable number.

16672349 is a deficient number, since it is larger than the sum of its proper divisors (1).

16672349 is an equidigital number, since it uses as much as digits as its factorization.

16672349 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 16672349 is about 4083.1787861910. The cubic root of 16672349 is about 255.4655036702.

The spelling of 16672349 in words is "sixteen million, six hundred seventy-two thousand, three hundred forty-nine".