408897 has 6 divisors (see below), whose sum is σ = 590642. Its totient is φ = 272592.

The previous prime is 408869. The next prime is 408911. The reversal of 408897 is 798804.

It can be written as a sum of positive squares in only one way, i.e., 408321 + 576 = 639^2 + 24^2 .

It is not a de Polignac number, because 408897 - 2⁷ = 408769 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 408897.

It is not an unprimeable number, because it can be changed into a prime (408817) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22708 + ... + 22725.

2⁴⁰⁸⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

408897 is a deficient number, since it is larger than the sum of its proper divisors (181745).

408897 is a wasteful number, since it uses less digits than its factorization.

408897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45439 (or 45436 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 408897 is about 639.4505453903. The cubic root of 408897 is about 74.2229095471. Note that the first 3 decimals are identical.

The spelling of 408897 in words is "four hundred eight thousand, eight hundred ninety-seven".