28683742 has 8 divisors (see below), whose sum is σ = 44413632. Its totient is φ = 13879200.

The previous prime is 28683731. The next prime is 28683751. The reversal of 28683742 is 24738682.

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

It is a junction number, because it is equal to n+sod(n) for n = 28683695 and 28683704.

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 3 ways as a sum of consecutive naturals, for example, 231259 + ... + 231382.

It is an arithmetic number, because the mean of its divisors is an integer number (5551704).

Almost surely, 2^28683742 is an apocalyptic number.

28683742 is a deficient number, since it is larger than the sum of its proper divisors (15729890).

28683742 is a wasteful number, since it uses less digits than its factorization.

28683742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462674.

The product of its digits is 129024, while the sum is 40.

The square root of 28683742 is about 5355.7204930803. The cubic root of 28683742 is about 306.1107648619.

The spelling of 28683742 in words is "twenty-eight million, six hundred eighty-three thousand, seven hundred forty-two".