8712090 has 64 divisors (see below), whose sum is σ = 23829120. Its totient is φ = 2263680.

The previous prime is 8712059. The next prime is 8712091. The reversal of 8712090 is 902178.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (8712091) 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 31 ways as a sum of consecutive naturals, for example, 10677 + ... + 11463.

It is an arithmetic number, because the mean of its divisors is an integer number (372330).

Almost surely, 2^8712090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8712090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11914560).

8712090 is an abundant number, since it is smaller than the sum of its proper divisors (15117030).

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

8712090 is a wasteful number, since it uses less digits than its factorization.

8712090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 8712090 is about 2951.6249761784. The cubic root of 8712090 is about 205.7662381186.

The spelling of 8712090 in words is "eight million, seven hundred twelve thousand, ninety".