28709035 has 8 divisors (see below), whose sum is σ = 34703136. Its totient is φ = 22799040.

The previous prime is 28709033. The next prime is 28709041. The reversal of 28709035 is 53090782.

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

It is not a de Polignac number, because 28709035 - 2¹ = 28709033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28709033) 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, 20271 + ... + 21640.

It is an arithmetic number, because the mean of its divisors is an integer number (4337892).

Almost surely, 2^28709035 is an apocalyptic number.

28709035 is a deficient number, since it is larger than the sum of its proper divisors (5994101).

28709035 is a wasteful number, since it uses less digits than its factorization.

28709035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42053.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 28709035 is about 5358.0812797120. The cubic root of 28709035 is about 306.2007134346.

The spelling of 28709035 in words is "twenty-eight million, seven hundred nine thousand, thirty-five".