28736835 has 32 divisors (see below), whose sum is σ = 49248000. Its totient is φ = 14265216.

The previous prime is 28736833. The next prime is 28736837. The reversal of 28736835 is 53863782.

It is an interprime number because it is at equal distance from previous prime (28736833) and next prime (28736837).

It is not a de Polignac number, because 28736835 - 2¹ = 28736833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28736833) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15961 + ... + 17669.

It is an arithmetic number, because the mean of its divisors is an integer number (1539000).

Almost surely, 2^28736835 is an apocalyptic number.

28736835 is a deficient number, since it is larger than the sum of its proper divisors (20511165).

28736835 is a wasteful number, since it uses less digits than its factorization.

28736835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795.

The product of its digits is 241920, while the sum is 42.

The square root of 28736835 is about 5360.6748642312. The cubic root of 28736835 is about 306.2995166359.

The spelling of 28736835 in words is "twenty-eight million, seven hundred thirty-six thousand, eight hundred thirty-five".