28486743 has 8 divisors (see below), whose sum is σ = 38134656. Its totient is φ = 18915000.

The previous prime is 28486741. The next prime is 28486751. The reversal of 28486743 is 34768482.

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

It is not a de Polignac number, because 28486743 - 2¹ = 28486741 is a prime.

It is a super-2 number, since 2×28486743² = 1622989053496098, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28486695 and 28486704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28486741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18163 + ... + 19668.

It is an arithmetic number, because the mean of its divisors is an integer number (4766832).

Almost surely, 2^28486743 is an apocalyptic number.

28486743 is a deficient number, since it is larger than the sum of its proper divisors (9647913).

28486743 is a wasteful number, since it uses less digits than its factorization.

28486743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38085.

The product of its digits is 258048, while the sum is 42.

The square root of 28486743 is about 5337.2973497829. The cubic root of 28486743 is about 305.4083681531.

It can be divided in two parts, 2848 and 6743, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 28486743 in words is "twenty-eight million, four hundred eighty-six thousand, seven hundred forty-three".