8386742 has 48 divisors (see below), whose sum is σ = 16374960. Its totient is φ = 3189312.

The previous prime is 8386739. The next prime is 8386757. The reversal of 8386742 is 2476838.

It is a junction number, because it is equal to n+sod(n) for n = 8386696 and 8386705.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36833 + ... + 37059.

It is an arithmetic number, because the mean of its divisors is an integer number (341145).

Almost surely, 2^8386742 is an apocalyptic number.

8386742 is a deficient number, since it is larger than the sum of its proper divisors (7988218).

8386742 is a wasteful number, since it uses less digits than its factorization.

8386742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 278 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 8386742 is about 2895.9872237287. The cubic root of 8386742 is about 203.1722675640.

The spelling of 8386742 in words is "eight million, three hundred eighty-six thousand, seven hundred forty-two".