986405 has 8 divisors (see below), whose sum is σ = 1352832. Its totient is φ = 676368.

The previous prime is 986369. The next prime is 986411. The reversal of 986405 is 504689.

986405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 986405 - 2⁸ = 986149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 986405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14057 + ... + 14126.

It is an arithmetic number, because the mean of its divisors is an integer number (169104).

2⁹⁸⁶⁴⁰⁵ is an apocalyptic number.

It is an amenable number.

986405 is a deficient number, since it is larger than the sum of its proper divisors (366427).

986405 is a wasteful number, since it uses less digits than its factorization.

986405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28195.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 986405 is about 993.1792386070. The cubic root of 986405 is about 99.5447640807.

The spelling of 986405 in words is "nine hundred eighty-six thousand, four hundred five".