16411399 has 4 divisors (see below), whose sum is σ = 16448400. Its totient is φ = 16374400.

The previous prime is 16411393. The next prime is 16411403. The reversal of 16411399 is 99311461.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16411399 - 2³ = 16411391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16411391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17827 + ... + 18724.

It is an arithmetic number, because the mean of its divisors is an integer number (4112100).

Almost surely, 2^16411399 is an apocalyptic number.

16411399 is a deficient number, since it is larger than the sum of its proper divisors (37001).

16411399 is an equidigital number, since it uses as much as digits as its factorization.

16411399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37000.

The product of its digits is 5832, while the sum is 34.

The square root of 16411399 is about 4051.0984930016. The cubic root of 16411399 is about 254.1256688987.

The spelling of 16411399 in words is "sixteen million, four hundred eleven thousand, three hundred ninety-nine".