28879092 has 144 divisors (see below), whose sum is σ = 85979712. Its totient is φ = 8398080.

The previous prime is 28879091. The next prime is 28879139. The reversal of 28879092 is 29097882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28879091) 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, 395568 + ... + 395640.

Almost surely, 2^28879092 is an apocalyptic number.

28879092 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28879092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42989856).

28879092 is an abundant number, since it is smaller than the sum of its proper divisors (57100620).

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

28879092 is a wasteful number, since it uses less digits than its factorization.

28879092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 28879092 is about 5373.9270557014. The cubic root of 28879092 is about 306.8041134560.

It can be divided in two parts, 288790 and 92, that added together give a palindrome (288882).

The spelling of 28879092 in words is "twenty-eight million, eight hundred seventy-nine thousand, ninety-two".