16412399 has 4 divisors (see below), whose sum is σ = 16575000. Its totient is φ = 16249800.

The previous prime is 16412393. The next prime is 16412413. The reversal of 16412399 is 99321461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99321461 = 2887 ⋅34403.

It is a cyclic number.

It is not a de Polignac number, because 16412399 - 2¹² = 16408303 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 (16412393) 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, 81149 + ... + 81350.

It is an arithmetic number, because the mean of its divisors is an integer number (4143750).

Almost surely, 2^16412399 is an apocalyptic number.

16412399 is a deficient number, since it is larger than the sum of its proper divisors (162601).

16412399 is a wasteful number, since it uses less digits than its factorization.

16412399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162600.

The product of its digits is 11664, while the sum is 35.

The square root of 16412399 is about 4051.2219144352. The cubic root of 16412399 is about 254.1308303621.

The spelling of 16412399 in words is "sixteen million, four hundred twelve thousand, three hundred ninety-nine".