16004279 has 2 divisors, whose sum is σ = 16004280. Its totient is φ = 16004278.

The previous prime is 16004273. The next prime is 16004291. The reversal of 16004279 is 97240061.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16004279 - 2¹² = 16000183 is a prime.

It is a super-2 number, since 2×16004279² = 512273892619682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16004273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8002139 + 8002140.

It is an arithmetic number, because the mean of its divisors is an integer number (8002140).

Almost surely, 2^16004279 is an apocalyptic number.

16004279 is a deficient number, since it is larger than the sum of its proper divisors (1).

16004279 is an equidigital number, since it uses as much as digits as its factorization.

16004279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 16004279 is about 4000.5348392434. The cubic root of 16004279 is about 252.0066713191.

The spelling of 16004279 in words is "sixteen million, four thousand, two hundred seventy-nine".