28787295 has 16 divisors (see below), whose sum is σ = 47305440. Its totient is φ = 14937984.

The previous prime is 28787263. The next prime is 28787309. The reversal of 28787295 is 59278782.

It is not a de Polignac number, because 28787295 - 2⁵ = 28787263 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25380 + ... + 26489.

It is an arithmetic number, because the mean of its divisors is an integer number (2956590).

Almost surely, 2^28787295 is an apocalyptic number.

28787295 is a deficient number, since it is larger than the sum of its proper divisors (18518145).

28787295 is a wasteful number, since it uses less digits than its factorization.

28787295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51914.

The product of its digits is 564480, while the sum is 48.

The square root of 28787295 is about 5365.3792969370. The cubic root of 28787295 is about 306.4786924327.

The spelling of 28787295 in words is "twenty-eight million, seven hundred eighty-seven thousand, two hundred ninety-five".