28079611 has 4 divisors (see below), whose sum is σ = 32090992. Its totient is φ = 24068232.

The previous prime is 28079603. The next prime is 28079651. The reversal of 28079611 is 11697082.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28079611 - 2³ = 28079603 is a prime.

It is a super-3 number, since 3×28079611³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28079651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2005680 + ... + 2005693.

It is an arithmetic number, because the mean of its divisors is an integer number (8022748).

Almost surely, 2^28079611 is an apocalyptic number.

28079611 is a deficient number, since it is larger than the sum of its proper divisors (4011381).

28079611 is an equidigital number, since it uses as much as digits as its factorization.

28079611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4011380.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 28079611 is about 5299.0198150224. The cubic root of 28079611 is about 303.9464175819.

The spelling of 28079611 in words is "twenty-eight million, seventy-nine thousand, six hundred eleven".