28689762 has 16 divisors (see below), whose sum is σ = 57702240. Its totient is φ = 9509472.

The previous prime is 28689743. The next prime is 28689769. The reversal of 28689762 is 26798682.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28689769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12283 + ... + 14430.

It is an arithmetic number, because the mean of its divisors is an integer number (3606390).

Almost surely, 2^28689762 is an apocalyptic number.

28689762 is an abundant number, since it is smaller than the sum of its proper divisors (29012478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28689762 is a wasteful number, since it uses less digits than its factorization.

28689762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26897.

The product of its digits is 580608, while the sum is 48.

The square root of 28689762 is about 5356.2824794815. The cubic root of 28689762 is about 306.1321783616.

The spelling of 28689762 in words is "twenty-eight million, six hundred eighty-nine thousand, seven hundred sixty-two".