28697794 has 8 divisors (see below), whose sum is σ = 43237008. Its totient is φ = 14285460.

The previous prime is 28697789. The next prime is 28697797. The reversal of 28697794 is 49779682.

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

It is not an unprimeable number, because it can be changed into a prime (28697797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31152 + ... + 32059.

It is an arithmetic number, because the mean of its divisors is an integer number (5404626).

Almost surely, 2^28697794 is an apocalyptic number.

28697794 is a deficient number, since it is larger than the sum of its proper divisors (14539214).

28697794 is a wasteful number, since it uses less digits than its factorization.

28697794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63440.

The product of its digits is 1524096, while the sum is 52.

The square root of 28697794 is about 5357.0322007619. The cubic root of 28697794 is about 306.1607440015.

The spelling of 28697794 in words is "twenty-eight million, six hundred ninety-seven thousand, seven hundred ninety-four".