408899 has 4 divisors (see below), whose sum is σ = 430440. Its totient is φ = 387360.

The previous prime is 408869. The next prime is 408911. The reversal of 408899 is 998804.

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 408899 - 2⁸ = 408643 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 408899.

It is not an unprimeable number, because it can be changed into a prime (408809) 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, 10742 + ... + 10779.

It is an arithmetic number, because the mean of its divisors is an integer number (107610).

2⁴⁰⁸⁸⁹⁹ is an apocalyptic number.

408899 is a deficient number, since it is larger than the sum of its proper divisors (21541).

408899 is a wasteful number, since it uses less digits than its factorization.

408899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21540.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 408899 is about 639.4521092310. The cubic root of 408899 is about 74.2230305601.

The spelling of 408899 in words is "four hundred eight thousand, eight hundred ninety-nine".