8742686 has 8 divisors (see below), whose sum is σ = 13128744. Its totient is φ = 4366440.

The previous prime is 8742677. The next prime is 8742689. The reversal of 8742686 is 6862478.

8742686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8742689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476 + ... + 4208.

It is an arithmetic number, because the mean of its divisors is an integer number (1641093).

Almost surely, 2^8742686 is an apocalyptic number.

8742686 is a deficient number, since it is larger than the sum of its proper divisors (4386058).

8742686 is a wasteful number, since it uses less digits than its factorization.

8742686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4906.

The product of its digits is 129024, while the sum is 41.

The square root of 8742686 is about 2956.8033414483. The cubic root of 8742686 is about 206.0068335936.

The spelling of 8742686 in words is "eight million, seven hundred forty-two thousand, six hundred eighty-six".