28488079 has 4 divisors (see below), whose sum is σ = 28499976. Its totient is φ = 28476184.

The previous prime is 28488067. The next prime is 28488127. The reversal of 28488079 is 97088482.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 97088482 = 2 ⋅48544241.

It is a cyclic number.

It is not a de Polignac number, because 28488079 - 2⁷ = 28487951 is a prime.

It is a super-2 number, since 2×28488079² = 1623141290220482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28488479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 964 + ... + 7609.

It is an arithmetic number, because the mean of its divisors is an integer number (7124994).

Almost surely, 2^28488079 is an apocalyptic number.

28488079 is a deficient number, since it is larger than the sum of its proper divisors (11897).

28488079 is an equidigital number, since it uses as much as digits as its factorization.

28488079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11896.

The product of its (nonzero) digits is 258048, while the sum is 46.

The square root of 28488079 is about 5337.4225052922. The cubic root of 28488079 is about 305.4131425284.

The spelling of 28488079 in words is "twenty-eight million, four hundred eighty-eight thousand, seventy-nine".