28969782 has 32 divisors (see below), whose sum is σ = 60238080. Its totient is φ = 9276960.

The previous prime is 28969781. The next prime is 28969783. The reversal of 28969782 is 28796982.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28969781) and next prime (28969783).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28969781) 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 15 ways as a sum of consecutive naturals, for example, 57343 + ... + 57845.

It is an arithmetic number, because the mean of its divisors is an integer number (1882440).

Almost surely, 2^28969782 is an apocalyptic number.

28969782 is an abundant number, since it is smaller than the sum of its proper divisors (31268298).

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

28969782 is a wasteful number, since it uses less digits than its factorization.

28969782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868.

The product of its digits is 870912, while the sum is 51.

The square root of 28969782 is about 5382.3584050117. The cubic root of 28969782 is about 307.1249336781.

The spelling of 28969782 in words is "twenty-eight million, nine hundred sixty-nine thousand, seven hundred eighty-two".