28030315 has 8 divisors (see below), whose sum is σ = 33688080. Its totient is φ = 22389792.

The previous prime is 28030279. The next prime is 28030319. The reversal of 28030315 is 51303082.

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

It is a cyclic number.

It is not a de Polignac number, because 28030315 - 2²³ = 19641707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28030319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409 + ... + 7498.

It is an arithmetic number, because the mean of its divisors is an integer number (4211010).

Almost surely, 2^28030315 is an apocalyptic number.

28030315 is a deficient number, since it is larger than the sum of its proper divisors (5657765).

28030315 is an equidigital number, since it uses as much as digits as its factorization.

28030315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8621.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 28030315 is about 5294.3663454657. The cubic root of 28030315 is about 303.7684459887.

Adding to 28030315 its reverse (51303082), we get a palindrome (79333397).

The spelling of 28030315 in words is "twenty-eight million, thirty thousand, three hundred fifteen".