8870742 has 32 divisors (see below), whose sum is σ = 20043360. Its totient is φ = 2907360.

The previous prime is 8870737. The next prime is 8870749. The reversal of 8870742 is 2470788.

It is a junction number, because it is equal to n+sod(n) for n = 8870697 and 8870706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8870749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1948 + ... + 4640.

It is an arithmetic number, because the mean of its divisors is an integer number (626355).

Almost surely, 2^8870742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8870742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10021680).

8870742 is an abundant number, since it is smaller than the sum of its proper divisors (11172618).

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

8870742 is a wasteful number, since it uses less digits than its factorization.

8870742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2765 (or 2759 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 8870742 is about 2978.3790893706. The cubic root of 8870742 is about 207.0077711848.

The spelling of 8870742 in words is "eight million, eight hundred seventy thousand, seven hundred forty-two".