28704495 has 16 divisors (see below), whose sum is σ = 46027872. Its totient is φ = 15275520.

The previous prime is 28704493. The next prime is 28704509. The reversal of 28704495 is 59440782.

It is not a de Polignac number, because 28704495 - 2¹ = 28704493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28704491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5979 + ... + 9651.

It is an arithmetic number, because the mean of its divisors is an integer number (2876742).

Almost surely, 2^28704495 is an apocalyptic number.

28704495 is a deficient number, since it is larger than the sum of its proper divisors (17323377).

28704495 is a wasteful number, since it uses less digits than its factorization.

28704495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4202.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 28704495 is about 5357.6576038414. The cubic root of 28704495 is about 306.1845718898.

The spelling of 28704495 in words is "twenty-eight million, seven hundred four thousand, four hundred ninety-five".