28719295 has 32 divisors (see below), whose sum is σ = 39896064. Its totient is φ = 19641600.

The previous prime is 28719293. The next prime is 28719319. The reversal of 28719295 is 59291782.

It is not a de Polignac number, because 28719295 - 2¹ = 28719293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28719293) 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, 92190 + ... + 92500.

It is an arithmetic number, because the mean of its divisors is an integer number (1246752).

Almost surely, 2^28719295 is an apocalyptic number.

28719295 is a deficient number, since it is larger than the sum of its proper divisors (11176769).

28719295 is a wasteful number, since it uses less digits than its factorization.

28719295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423.

The product of its digits is 90720, while the sum is 43.

The square root of 28719295 is about 5359.0386264702. The cubic root of 28719295 is about 306.2371856362.

The spelling of 28719295 in words is "twenty-eight million, seven hundred nineteen thousand, two hundred ninety-five".