28694715 has 16 divisors (see below), whose sum is σ = 52470528. Its totient is φ = 13117536.

The previous prime is 28694669. The next prime is 28694719. The reversal of 28694715 is 51749682.

It is not a de Polignac number, because 28694715 - 2⁶ = 28694651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28694719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136537 + ... + 136746.

It is an arithmetic number, because the mean of its divisors is an integer number (3279408).

Almost surely, 2^28694715 is an apocalyptic number.

28694715 is a deficient number, since it is larger than the sum of its proper divisors (23775813).

28694715 is a wasteful number, since it uses less digits than its factorization.

28694715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273298.

The product of its digits is 120960, while the sum is 42.

The square root of 28694715 is about 5356.7448137838. The cubic root of 28694715 is about 306.1497942325.

The spelling of 28694715 in words is "twenty-eight million, six hundred ninety-four thousand, seven hundred fifteen".