16497899 has 8 divisors (see below), whose sum is σ = 18032880. Its totient is φ = 14968800.

The previous prime is 16497889. The next prime is 16497907. The reversal of 16497899 is 99879461.

It is a happy number.

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

It is not a de Polignac number, because 16497899 - 2⁴ = 16497883 is a prime.

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 16497899.

It is not an unprimeable number, because it can be changed into a prime (16497809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6137 + ... + 8405.

It is an arithmetic number, because the mean of its divisors is an integer number (2254110).

Almost surely, 2^16497899 is an apocalyptic number.

16497899 is a deficient number, since it is larger than the sum of its proper divisors (1534981).

16497899 is a wasteful number, since it uses less digits than its factorization.

16497899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2941.

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

The square root of 16497899 is about 4061.7605788623. The cubic root of 16497899 is about 254.5713624256.

The spelling of 16497899 in words is "sixteen million, four hundred ninety-seven thousand, eight hundred ninety-nine".