16428743 has 2 divisors, whose sum is σ = 16428744. Its totient is φ = 16428742.

The previous prime is 16428719. The next prime is 16428751. The reversal of 16428743 is 34782461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16428743 - 2⁶ = 16428679 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 (16428343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8214371 + 8214372.

It is an arithmetic number, because the mean of its divisors is an integer number (8214372).

Almost surely, 2^16428743 is an apocalyptic number.

16428743 is a deficient number, since it is larger than the sum of its proper divisors (1).

16428743 is an equidigital number, since it uses as much as digits as its factorization.

16428743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 35.

The square root of 16428743 is about 4053.2385816776. The cubic root of 16428743 is about 254.2151596207.

It can be divided in two parts, 16428 and 743, that added together give a palindrome (17171).

The spelling of 16428743 in words is "sixteen million, four hundred twenty-eight thousand, seven hundred forty-three".