16742423 has 2 divisors, whose sum is σ = 16742424. Its totient is φ = 16742422.

The previous prime is 16742393. The next prime is 16742431. The reversal of 16742423 is 32424761.

It is a strong prime.

It is an emirp because it is prime and its reverse (32424761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16742423 - 2¹⁸ = 16480279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16742443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8371211 + 8371212.

It is an arithmetic number, because the mean of its divisors is an integer number (8371212).

Almost surely, 2^16742423 is an apocalyptic number.

16742423 is a deficient number, since it is larger than the sum of its proper divisors (1).

16742423 is an equidigital number, since it uses as much as digits as its factorization.

16742423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 29.

The square root of 16742423 is about 4091.7506033482. The cubic root of 16742423 is about 255.8229111772.

The spelling of 16742423 in words is "sixteen million, seven hundred forty-two thousand, four hundred twenty-three".