16744939 has 2 divisors, whose sum is σ = 16744940. Its totient is φ = 16744938.

The previous prime is 16744883. The next prime is 16744951. The reversal of 16744939 is 93944761.

It is a strong prime.

It is an emirp because it is prime and its reverse (93944761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16744939 - 2⁷ = 16744811 is a prime.

It is a super-2 number, since 2×16744939² = 560785964227442, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16744895 and 16744904.

It is not a weakly prime, because it can be changed into another prime (16744969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8372469 + 8372470.

It is an arithmetic number, because the mean of its divisors is an integer number (8372470).

Almost surely, 2^16744939 is an apocalyptic number.

16744939 is a deficient number, since it is larger than the sum of its proper divisors (1).

16744939 is an equidigital number, since it uses as much as digits as its factorization.

16744939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 43.

The square root of 16744939 is about 4092.0580396666. The cubic root of 16744939 is about 255.8357252963.

The spelling of 16744939 in words is "sixteen million, seven hundred forty-four thousand, nine hundred thirty-nine".