28746485 has 4 divisors (see below), whose sum is σ = 34495788. Its totient is φ = 22997184.

The previous prime is 28746463. The next prime is 28746493. The reversal of 28746485 is 58464782.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18722929 + 10023556 = 4327^2 + 3166^2 .

It is a cyclic number.

It is not a de Polignac number, because 28746485 - 2²⁰ = 27697909 is a prime.

It is a Duffinian number.

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, 2874644 + ... + 2874653.

It is an arithmetic number, because the mean of its divisors is an integer number (8623947).

Almost surely, 2^28746485 is an apocalyptic number.

It is an amenable number.

28746485 is a deficient number, since it is larger than the sum of its proper divisors (5749303).

28746485 is an equidigital number, since it uses as much as digits as its factorization.

28746485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5749302.

The product of its digits is 430080, while the sum is 44.

The square root of 28746485 is about 5361.5748619226. The cubic root of 28746485 is about 306.3337985316. Note that the first 3 decimals are identical.

It can be divided in two parts, 287 and 46485, that multiplied together give a triangular number (13341195 = T₅₁₆₅).

The spelling of 28746485 in words is "twenty-eight million, seven hundred forty-six thousand, four hundred eighty-five".