28727698 has 8 divisors (see below), whose sum is σ = 44093808. Its totient is φ = 14029764.

The previous prime is 28727689. The next prime is 28727701. The reversal of 28727698 is 89672782.

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

It is an unprimeable number.

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, 166936 + ... + 167107.

It is an arithmetic number, because the mean of its divisors is an integer number (5511726).

Almost surely, 2^28727698 is an apocalyptic number.

28727698 is a deficient number, since it is larger than the sum of its proper divisors (15366110).

28727698 is a wasteful number, since it uses less digits than its factorization.

28727698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334088.

The product of its digits is 677376, while the sum is 49.

The square root of 28727698 is about 5359.8225716902. The cubic root of 28727698 is about 306.2670501128.

The spelling of 28727698 in words is "twenty-eight million, seven hundred twenty-seven thousand, six hundred ninety-eight".