8712706 has 4 divisors (see below), whose sum is σ = 13069062. Its totient is φ = 4356352.

The previous prime is 8712701. The next prime is 8712709. The reversal of 8712706 is 6072178.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4473225 + 4239481 = 2115^2 + 2059^2 .

It is a super-2 number, since 2×8712706² = 151822491684872, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (8712701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2178175 + ... + 2178178.

Almost surely, 2^8712706 is an apocalyptic number.

8712706 is a deficient number, since it is larger than the sum of its proper divisors (4356356).

8712706 is a wasteful number, since it uses less digits than its factorization.

8712706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4356355.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 8712706 is about 2951.7293236339. The cubic root of 8712706 is about 205.7710876635.

The spelling of 8712706 in words is "eight million, seven hundred twelve thousand, seven hundred six".