408851 has 4 divisors (see below), whose sum is σ = 412104. Its totient is φ = 405600.

The previous prime is 408841. The next prime is 408857. The reversal of 408851 is 158804.

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 408851 - 2⁶ = 408787 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 408851.

It is not an unprimeable number, because it can be changed into a prime (408857) 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, 1430 + ... + 1691.

It is an arithmetic number, because the mean of its divisors is an integer number (103026).

2⁴⁰⁸⁸⁵¹ is an apocalyptic number.

408851 is a deficient number, since it is larger than the sum of its proper divisors (3253).

408851 is a wasteful number, since it uses less digits than its factorization.

408851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3252.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 408851 is about 639.4145759990. The cubic root of 408851 is about 74.2201261388.

Subtracting from 408851 its reverse (158804), we obtain a cube (250047 = 63³).

The spelling of 408851 in words is "four hundred eight thousand, eight hundred fifty-one".