28914065 has 8 divisors (see below), whose sum is σ = 34746408. Its totient is φ = 23098240.

The previous prime is 28914043. The next prime is 28914113. The reversal of 28914065 is 56041982.

It can be written as a sum of positive squares in 4 ways, for example, as 1957201 + 26956864 = 1399^2 + 5192^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28914065 - 2⁸ = 28913809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125 + ... + 7605.

It is an arithmetic number, because the mean of its divisors is an integer number (4343301).

Almost surely, 2^28914065 is an apocalyptic number.

It is an amenable number.

28914065 is a deficient number, since it is larger than the sum of its proper divisors (5832343).

28914065 is an equidigital number, since it uses as much as digits as its factorization.

28914065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8259.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 28914065 is about 5377.1800230232. The cubic root of 28914065 is about 306.9279115753.

The spelling of 28914065 in words is "twenty-eight million, nine hundred fourteen thousand, sixty-five".