8287742 has 4 divisors (see below), whose sum is σ = 12431616. Its totient is φ = 4143870.

The previous prime is 8287729. The next prime is 8287793. The reversal of 8287742 is 2477828.

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

It is a junction number, because it is equal to n+sod(n) for n = 8287696 and 8287705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2071934 + ... + 2071937.

It is an arithmetic number, because the mean of its divisors is an integer number (3107904).

Almost surely, 2^8287742 is an apocalyptic number.

8287742 is a deficient number, since it is larger than the sum of its proper divisors (4143874).

8287742 is a wasteful number, since it uses less digits than its factorization.

8287742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4143873.

The product of its digits is 50176, while the sum is 38.

The square root of 8287742 is about 2878.8438651653. The cubic root of 8287742 is about 202.3696626092.

The spelling of 8287742 in words is "eight million, two hundred eighty-seven thousand, seven hundred forty-two".