28901735 has 4 divisors (see below), whose sum is σ = 34682088. Its totient is φ = 23121384.

The previous prime is 28901707. The next prime is 28901759. The reversal of 28901735 is 53710982.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28901735 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28901695 and 28901704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2890169 + ... + 2890178.

It is an arithmetic number, because the mean of its divisors is an integer number (8670522).

Almost surely, 2^28901735 is an apocalyptic number.

28901735 is a deficient number, since it is larger than the sum of its proper divisors (5780353).

28901735 is an equidigital number, since it uses as much as digits as its factorization.

28901735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5780352.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 28901735 is about 5376.0333890332. The cubic root of 28901735 is about 306.8842769957.

The spelling of 28901735 in words is "twenty-eight million, nine hundred one thousand, seven hundred thirty-five".