28715695 has 4 divisors (see below), whose sum is σ = 34458840. Its totient is φ = 22972552.

The previous prime is 28715683. The next prime is 28715699. The reversal of 28715695 is 59651782.

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 28715695 - 2¹⁷ = 28584623 is a prime.

It is a super-2 number, since 2×28715695² = 1649182278666050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28715699) 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, 2871565 + ... + 2871574.

It is an arithmetic number, because the mean of its divisors is an integer number (8614710).

Almost surely, 2^28715695 is an apocalyptic number.

28715695 is a deficient number, since it is larger than the sum of its proper divisors (5743145).

28715695 is an equidigital number, since it uses as much as digits as its factorization.

28715695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5743144.

The product of its digits is 151200, while the sum is 43.

The square root of 28715695 is about 5358.7027348044. The cubic root of 28715695 is about 306.2243893619.

The spelling of 28715695 in words is "twenty-eight million, seven hundred fifteen thousand, six hundred ninety-five".