28381676 has 12 divisors (see below), whose sum is σ = 50879640. Its totient is φ = 13844640.

The previous prime is 28381673. The next prime is 28381693. The reversal of 28381676 is 67618382.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (28381673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86366 + ... + 86693.

It is an arithmetic number, because the mean of its divisors is an integer number (4239970).

Almost surely, 2^28381676 is an apocalyptic number.

It is an amenable number.

28381676 is a deficient number, since it is larger than the sum of its proper divisors (22497964).

28381676 is a wasteful number, since it uses less digits than its factorization.

28381676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173104 (or 173102 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 28381676 is about 5327.4455417207. The cubic root of 28381676 is about 305.0324286938.

The spelling of 28381676 in words is "twenty-eight million, three hundred eighty-one thousand, six hundred seventy-six".