8712890 has 8 divisors (see below), whose sum is σ = 15683220. Its totient is φ = 3485152.

The previous prime is 8712863. The next prime is 8712919. The reversal of 8712890 is 982178.

It is a happy number.

8712890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8708401 + 4489 = 2951^2 + 67^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 8712890.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435635 + ... + 435654.

Almost surely, 2^8712890 is an apocalyptic number.

8712890 is a deficient number, since it is larger than the sum of its proper divisors (6970330).

8712890 is a wasteful number, since it uses less digits than its factorization.

8712890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871296.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 8712890 is about 2951.7604916388. The cubic root of 8712890 is about 205.7725361845.

The spelling of 8712890 in words is "eight million, seven hundred twelve thousand, eight hundred ninety".