16799489 has 8 divisors (see below), whose sum is σ = 19819008. Its totient is φ = 13934880.

The previous prime is 16799479. The next prime is 16799491. The reversal of 16799489 is 98499761.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16799489 - 2¹² = 16795393 is a prime.

It is a super-2 number, since 2×16799489² = 564445661322242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16799489.

It is not an unprimeable number, because it can be changed into a prime (16799459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38492 + ... + 38925.

It is an arithmetic number, because the mean of its divisors is an integer number (2477376).

Almost surely, 2^16799489 is an apocalyptic number.

It is an amenable number.

16799489 is a deficient number, since it is larger than the sum of its proper divisors (3019519).

16799489 is an equidigital number, since it uses as much as digits as its factorization.

16799489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77455.

The product of its digits is 979776, while the sum is 53.

The square root of 16799489 is about 4098.7179702927. The cubic root of 16799489 is about 256.1132362412.

The spelling of 16799489 in words is "sixteen million, seven hundred ninety-nine thousand, four hundred eighty-nine".