8631406 has 8 divisors (see below), whose sum is σ = 14796720. Its totient is φ = 3699168.

The previous prime is 8631401. The next prime is 8631451. The reversal of 8631406 is 6041368.

8631406 is digitally balanced in base 2 and base 8, because in such bases 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.

8631406 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8631401) 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, 308251 + ... + 308278.

It is an arithmetic number, because the mean of its divisors is an integer number (1849590).

Almost surely, 2^8631406 is an apocalyptic number.

8631406 is a deficient number, since it is larger than the sum of its proper divisors (6165314).

8631406 is a wasteful number, since it uses less digits than its factorization.

8631406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616538.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 8631406 is about 2937.9254585506. The cubic root of 8631406 is about 205.1290561549.

The spelling of 8631406 in words is "eight million, six hundred thirty-one thousand, four hundred six".