28013495 has 8 divisors (see below), whose sum is σ = 34186320. Its totient is φ = 22030720.

The previous prime is 28013441. The next prime is 28013497. The reversal of 28013495 is 59431082.

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

It is not a de Polignac number, because 28013495 - 2¹⁸ = 27751351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28013497) 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 7 ways as a sum of consecutive naturals, for example, 47186 + ... + 47775.

It is an arithmetic number, because the mean of its divisors is an integer number (4273290).

Almost surely, 2^28013495 is an apocalyptic number.

28013495 is a deficient number, since it is larger than the sum of its proper divisors (6172825).

28013495 is an equidigital number, since it uses as much as digits as its factorization.

28013495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95025.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 28013495 is about 5292.7776261619. Note that the first 3 decimals coincide. The cubic root of 28013495 is about 303.7076736001.

The spelling of 28013495 in words is "twenty-eight million, thirteen thousand, four hundred ninety-five".