28807114 has 32 divisors (see below), whose sum is σ = 50893056. Its totient is φ = 11975040.

The previous prime is 28807081. The next prime is 28807139. The reversal of 28807114 is 41170882.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72364 + ... + 72760.

It is an arithmetic number, because the mean of its divisors is an integer number (1590408).

Almost surely, 2^28807114 is an apocalyptic number.

28807114 is a deficient number, since it is larger than the sum of its proper divisors (22085942).

28807114 is a wasteful number, since it uses less digits than its factorization.

28807114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 28807114 is about 5367.2259128902. The cubic root of 28807114 is about 306.5490094227.

Adding to 28807114 its reverse (41170882), we get a palindrome (69977996).

The spelling of 28807114 in words is "twenty-eight million, eight hundred seven thousand, one hundred fourteen".