28735165 has 8 divisors (see below), whose sum is σ = 35981568. Its totient is φ = 21988560.

The previous prime is 28735141. The next prime is 28735193. The reversal of 28735165 is 56153782.

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

It is not a de Polignac number, because 28735165 - 2⁷ = 28735037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124821 + ... + 125050.

It is an arithmetic number, because the mean of its divisors is an integer number (4497696).

Almost surely, 2^28735165 is an apocalyptic number.

It is an amenable number.

28735165 is a deficient number, since it is larger than the sum of its proper divisors (7246403).

28735165 is a wasteful number, since it uses less digits than its factorization.

28735165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249899.

The product of its digits is 50400, while the sum is 37.

The square root of 28735165 is about 5360.5190979979. The cubic root of 28735165 is about 306.2935831351.

It can be divided in two parts, 28735 and 165, that added together give a square (28900 = 170²).

The spelling of 28735165 in words is "twenty-eight million, seven hundred thirty-five thousand, one hundred sixty-five".