886409 has 4 divisors (see below), whose sum is σ = 910404. Its totient is φ = 862416.

The previous prime is 886387. The next prime is 886421. The reversal of 886409 is 904688.

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

It can be written as a sum of positive squares in 2 ways, for example, as 760384 + 126025 = 872^2 + 355^2 .

It is a cyclic number.

It is not a de Polignac number, because 886409 - 2¹² = 882313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (886429) 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, 11942 + ... + 12015.

It is an arithmetic number, because the mean of its divisors is an integer number (227601).

2⁸⁸⁶⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

886409 is a deficient number, since it is larger than the sum of its proper divisors (23995).

886409 is a wasteful number, since it uses less digits than its factorization.

886409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23994.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 886409 is about 941.4929633301. The cubic root of 886409 is about 96.0604726049.

The spelling of 886409 in words is "eight hundred eighty-six thousand, four hundred nine".