8387406 has 24 divisors (see below), whose sum is σ = 18316584. Its totient is φ = 2773680.

The previous prime is 8387377. The next prime is 8387413. The reversal of 8387406 is 6047838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 580 + ... + 4136.

It is an arithmetic number, because the mean of its divisors is an integer number (763191).

Almost surely, 2^8387406 is an apocalyptic number.

8387406 is an abundant number, since it is smaller than the sum of its proper divisors (9929178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8387406 is a wasteful number, since it uses less digits than its factorization.

8387406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3696 (or 3693 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 8387406 is about 2896.1018628494. The cubic root of 8387406 is about 203.1776293134.

The spelling of 8387406 in words is "eight million, three hundred eighty-seven thousand, four hundred six".