16416749 has 2 divisors, whose sum is σ = 16416750. Its totient is φ = 16416748.

The previous prime is 16416737. The next prime is 16416761. The reversal of 16416749 is 94761461.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (16416737) and next prime (16416761).

It can be written as a sum of positive squares in only one way, i.e., 8743849 + 7672900 = 2957^2 + 2770^2 .

It is a cyclic number.

It is not a de Polignac number, because 16416749 - 2¹² = 16412653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16416149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8208374 + 8208375.

It is an arithmetic number, because the mean of its divisors is an integer number (8208375).

Almost surely, 2^16416749 is an apocalyptic number.

It is an amenable number.

16416749 is a deficient number, since it is larger than the sum of its proper divisors (1).

16416749 is an equidigital number, since it uses as much as digits as its factorization.

16416749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 16416749 is about 4051.7587539240. The cubic root of 16416749 is about 254.1532802887.

The spelling of 16416749 in words is "sixteen million, four hundred sixteen thousand, seven hundred forty-nine".