16499279 has 2 divisors, whose sum is σ = 16499280. Its totient is φ = 16499278.

The previous prime is 16499269. The next prime is 16499309. The reversal of 16499279 is 97299461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16499279 - 2¹² = 16495183 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 (16499269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8249639 + 8249640.

It is an arithmetic number, because the mean of its divisors is an integer number (8249640).

Almost surely, 2^16499279 is an apocalyptic number.

16499279 is a deficient number, since it is larger than the sum of its proper divisors (1).

16499279 is an equidigital number, since it uses as much as digits as its factorization.

16499279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 47.

The square root of 16499279 is about 4061.9304523834. The cubic root of 16499279 is about 254.5784602725.

The spelling of 16499279 in words is "sixteen million, four hundred ninety-nine thousand, two hundred seventy-nine".