28771314 has 32 divisors (see below), whose sum is σ = 67604544. Its totient is φ = 8047680.

The previous prime is 28771307. The next prime is 28771319. The reversal of 28771314 is 41317782.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (28771319) 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, 15909 + ... + 17624.

It is an arithmetic number, because the mean of its divisors is an integer number (2112642).

Almost surely, 2^28771314 is an apocalyptic number.

28771314 is an abundant number, since it is smaller than the sum of its proper divisors (38833230).

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

28771314 is a wasteful number, since it uses less digits than its factorization.

28771314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33562.

The product of its digits is 9408, while the sum is 33.

The square root of 28771314 is about 5363.8898198975. The cubic root of 28771314 is about 306.4219689997.

The spelling of 28771314 in words is "twenty-eight million, seven hundred seventy-one thousand, three hundred fourteen".