28770559 has 8 divisors (see below), whose sum is σ = 29098800. Its totient is φ = 28444416.

The previous prime is 28770551. The next prime is 28770601. The reversal of 28770559 is 95507782.

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

It is a cyclic number.

It is not a de Polignac number, because 28770559 - 2³ = 28770551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28770551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52324 + ... + 52870.

It is an arithmetic number, because the mean of its divisors is an integer number (3637350).

Almost surely, 2^28770559 is an apocalyptic number.

28770559 is a deficient number, since it is larger than the sum of its proper divisors (328241).

28770559 is a wasteful number, since it uses less digits than its factorization.

28770559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049.

The product of its (nonzero) digits is 176400, while the sum is 43.

The square root of 28770559 is about 5363.8194414055. The cubic root of 28770559 is about 306.4192886609.

The spelling of 28770559 in words is "twenty-eight million, seven hundred seventy thousand, five hundred fifty-nine".