16399798 has 8 divisors (see below), whose sum is σ = 26046792. Its totient is φ = 7717536.

The previous prime is 16399787. The next prime is 16399811. The reversal of 16399798 is 89799361.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241140 + ... + 241207.

It is an arithmetic number, because the mean of its divisors is an integer number (3255849).

Almost surely, 2^16399798 is an apocalyptic number.

16399798 is a deficient number, since it is larger than the sum of its proper divisors (9646994).

16399798 is a wasteful number, since it uses less digits than its factorization.

16399798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482366.

The product of its digits is 734832, while the sum is 52.

The square root of 16399798 is about 4049.6664060142. Note that the first 3 decimals coincide. The cubic root of 16399798 is about 254.0657754303.

The spelling of 16399798 in words is "sixteen million, three hundred ninety-nine thousand, seven hundred ninety-eight".