16401347 has 2 divisors, whose sum is σ = 16401348. Its totient is φ = 16401346.

The previous prime is 16401337. The next prime is 16401349. The reversal of 16401347 is 74310461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16401347 - 2⁶ = 16401283 is a prime.

Together with 16401349, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16401349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8200673 + 8200674.

It is an arithmetic number, because the mean of its divisors is an integer number (8200674).

Almost surely, 2^16401347 is an apocalyptic number.

16401347 is a deficient number, since it is larger than the sum of its proper divisors (1).

16401347 is an equidigital number, since it uses as much as digits as its factorization.

16401347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 16401347 is about 4049.8576518194. The cubic root of 16401347 is about 254.0737742178.

The spelling of 16401347 in words is "sixteen million, four hundred one thousand, three hundred forty-seven".