28773835 has 4 divisors (see below), whose sum is σ = 34528608. Its totient is φ = 23019064.

The previous prime is 28773821. The next prime is 28773853. The reversal of 28773835 is 53837782.

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

It is a cyclic number.

It is not a de Polignac number, because 28773835 - 2⁵ = 28773803 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28773791 and 28773800.

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, 2877379 + ... + 2877388.

It is an arithmetic number, because the mean of its divisors is an integer number (8632152).

Almost surely, 2^28773835 is an apocalyptic number.

28773835 is a deficient number, since it is larger than the sum of its proper divisors (5754773).

28773835 is an equidigital number, since it uses as much as digits as its factorization.

28773835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5754772.

The product of its digits is 282240, while the sum is 43.

The square root of 28773835 is about 5364.1248121199. The cubic root of 28773835 is about 306.4309185066.

The spelling of 28773835 in words is "twenty-eight million, seven hundred seventy-three thousand, eight hundred thirty-five".