28692774 has 96 divisors (see below), whose sum is σ = 74131200. Its totient is φ = 7922880.

The previous prime is 28692773. The next prime is 28692779. The reversal of 28692774 is 47729682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28692773) 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 47 ways as a sum of consecutive naturals, for example, 108967 + ... + 109229.

It is an arithmetic number, because the mean of its divisors is an integer number (772200).

Almost surely, 2^28692774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28692774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37065600).

28692774 is an abundant number, since it is smaller than the sum of its proper divisors (45438426).

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

28692774 is a wasteful number, since it uses less digits than its factorization.

28692774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 327 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 28692774 is about 5356.5636372585. The cubic root of 28692774 is about 306.1428911013.

The spelling of 28692774 in words is "twenty-eight million, six hundred ninety-two thousand, seven hundred seventy-four".