16429447 has 2 divisors, whose sum is σ = 16429448. Its totient is φ = 16429446.

The previous prime is 16429423. The next prime is 16429459. The reversal of 16429447 is 74492461.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16429447 - 2¹⁹ = 15905159 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16429477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8214723 + 8214724.

It is an arithmetic number, because the mean of its divisors is an integer number (8214724).

Almost surely, 2^16429447 is an apocalyptic number.

16429447 is a deficient number, since it is larger than the sum of its proper divisors (1).

16429447 is an equidigital number, since it uses as much as digits as its factorization.

16429447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 37.

The square root of 16429447 is about 4053.3254248826. The cubic root of 16429447 is about 254.2187907550.

The spelling of 16429447 in words is "sixteen million, four hundred twenty-nine thousand, four hundred forty-seven".