8402706 has 48 divisors (see below), whose sum is σ = 19819800. Its totient is φ = 2557440.

The previous prime is 8402687. The next prime is 8402711. The reversal of 8402706 is 6072048.

It can be written as a sum of positive squares in 4 ways, for example, as 5130225 + 3272481 = 2265^2 + 1809^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8402706.

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, 34746 + ... + 34986.

Almost surely, 2^8402706 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8402706, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9909900).

8402706 is an abundant number, since it is smaller than the sum of its proper divisors (11417094).

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

8402706 is a wasteful number, since it uses less digits than its factorization.

8402706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 8402706 is about 2898.7421409984. The cubic root of 8402706 is about 203.3010973412.

The spelling of 8402706 in words is "eight million, four hundred two thousand, seven hundred six".