28682707 has 4 divisors (see below), whose sum is σ = 28818856. Its totient is φ = 28546560.

The previous prime is 28682701. The next prime is 28682713. The reversal of 28682707 is 70728682.

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

It is an interprime number because it is at equal distance from previous prime (28682701) and next prime (28682713).

It is a cyclic number.

It is not a de Polignac number, because 28682707 - 2⁷ = 28682579 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28682707.

It is not an unprimeable number, because it can be changed into a prime (28682701) 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, 67758 + ... + 68179.

It is an arithmetic number, because the mean of its divisors is an integer number (7204714).

Almost surely, 2^28682707 is an apocalyptic number.

28682707 is a deficient number, since it is larger than the sum of its proper divisors (136149).

28682707 is a wasteful number, since it uses less digits than its factorization.

28682707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136148.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 28682707 is about 5355.6238665537. The cubic root of 28682707 is about 306.1070830033.

The spelling of 28682707 in words is "twenty-eight million, six hundred eighty-two thousand, seven hundred seven".