28318976 has 36 divisors (see below), whose sum is σ = 64606752. Its totient is φ = 12135936.

The previous prime is 28318973. The next prime is 28318981. The reversal of 28318976 is 67981382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28318973) 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, 6110 + ... + 9693.

It is an arithmetic number, because the mean of its divisors is an integer number (1794632).

Almost surely, 2^28318976 is an apocalyptic number.

It is an amenable number.

28318976 is an abundant number, since it is smaller than the sum of its proper divisors (36287776).

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

28318976 is an equidigital number, since it uses as much as digits as its factorization.

28318976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15826 (or 15812 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The square root of 28318976 is about 5321.5576666987. The cubic root of 28318976 is about 304.8076400608.

The spelling of 28318976 in words is "twenty-eight million, three hundred eighteen thousand, nine hundred seventy-six".