28671076 has 36 divisors (see below), whose sum is σ = 61446000. Its totient is φ = 11639376.

The previous prime is 28671073. The next prime is 28671077. The reversal of 28671076 is 67017682.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28671073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126 + ... + 7573.

Almost surely, 2^28671076 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 28671076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30723000).

28671076 is an abundant number, since it is smaller than the sum of its proper divisors (32774924).

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

28671076 is a wasteful number, since it uses less digits than its factorization.

28671076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7736 (or 7727 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 28671076 is about 5354.5378885577. The cubic root of 28671076 is about 306.0657013578.

The spelling of 28671076 in words is "twenty-eight million, six hundred seventy-one thousand, seventy-six".