8470638 has 48 divisors (see below), whose sum is σ = 20217600. Its totient is φ = 2541840.

The previous prime is 8470597. The next prime is 8470661. The reversal of 8470638 is 8360748.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35323 + ... + 35561.

It is an arithmetic number, because the mean of its divisors is an integer number (421200).

Almost surely, 2^8470638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8470638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10108800).

8470638 is an abundant number, since it is smaller than the sum of its proper divisors (11746962).

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

8470638 is a wasteful number, since it uses less digits than its factorization.

8470638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 434 counting only the distinct ones).

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

The square root of 8470638 is about 2910.4360498042. The cubic root of 8470638 is about 203.8474927060.

The spelling of 8470638 in words is "eight million, four hundred seventy thousand, six hundred thirty-eight".