28294495 has 4 divisors (see below), whose sum is σ = 33953400. Its totient is φ = 22635592.

The previous prime is 28294481. The next prime is 28294501. The reversal of 28294495 is 59449282.

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 28294495 - 2¹⁹ = 27770207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2829445 + ... + 2829454.

It is an arithmetic number, because the mean of its divisors is an integer number (8488350).

Almost surely, 2^28294495 is an apocalyptic number.

28294495 is a deficient number, since it is larger than the sum of its proper divisors (5658905).

28294495 is an equidigital number, since it uses as much as digits as its factorization.

28294495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5658904.

The product of its digits is 207360, while the sum is 43.

The square root of 28294495 is about 5319.2569969875. The cubic root of 28294495 is about 304.7197820453.

The spelling of 28294495 in words is "twenty-eight million, two hundred ninety-four thousand, four hundred ninety-five".