28024895 has 4 divisors (see below), whose sum is σ = 33629880. Its totient is φ = 22419912.

The previous prime is 28024889. The next prime is 28024937. The reversal of 28024895 is 59842082.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59842082 = 2 ⋅29921041.

It is a cyclic number.

It is not a de Polignac number, because 28024895 - 2¹² = 28020799 is a prime.

It is a super-2 number, since 2×28024895² = 1570789479522050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2802485 + ... + 2802494.

It is an arithmetic number, because the mean of its divisors is an integer number (8407470).

Almost surely, 2^28024895 is an apocalyptic number.

28024895 is a deficient number, since it is larger than the sum of its proper divisors (5604985).

28024895 is an equidigital number, since it uses as much as digits as its factorization.

28024895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5604984.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 28024895 is about 5293.8544558762. The cubic root of 28024895 is about 303.7488656271.

The spelling of 28024895 in words is "twenty-eight million, twenty-four thousand, eight hundred ninety-five".