28873476 has 48 divisors (see below), whose sum is σ = 75626880. Its totient is φ = 9525600.

The previous prime is 28873457. The next prime is 28873477. The reversal of 28873476 is 67437882.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28873477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9585 + ... + 12231.

It is an arithmetic number, because the mean of its divisors is an integer number (1575560).

Almost surely, 2^28873476 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28873476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37813440).

28873476 is an abundant number, since it is smaller than the sum of its proper divisors (46753404).

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

28873476 is a wasteful number, since it uses less digits than its factorization.

28873476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2761 (or 2753 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 28873476 is about 5373.4045073864. The cubic root of 28873476 is about 306.7842245157.

The spelling of 28873476 in words is "twenty-eight million, eight hundred seventy-three thousand, four hundred seventy-six".