28862705 has 8 divisors (see below), whose sum is σ = 35752704. Its totient is φ = 22345200.

The previous prime is 28862689. The next prime is 28862711. The reversal of 28862705 is 50726882.

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

It is not a de Polignac number, because 28862705 - 2⁴ = 28862689 is a prime.

It is a Duffinian number.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 92951 + ... + 93260.

It is an arithmetic number, because the mean of its divisors is an integer number (4469088).

Almost surely, 2^28862705 is an apocalyptic number.

It is an amenable number.

28862705 is a deficient number, since it is larger than the sum of its proper divisors (6889999).

28862705 is a wasteful number, since it uses less digits than its factorization.

28862705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186247.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 28862705 is about 5372.4021629063. The cubic root of 28862705 is about 306.7460720391.

The spelling of 28862705 in words is "twenty-eight million, eight hundred sixty-two thousand, seven hundred five".