28712495 has 16 divisors (see below), whose sum is σ = 39605760. Its totient is φ = 19574304.

The previous prime is 28712459. The next prime is 28712501. The reversal of 28712495 is 59421782.

It is a cyclic number.

It is not a de Polignac number, because 28712495 - 2⁸ = 28712239 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, 3974 + ... + 8556.

It is an arithmetic number, because the mean of its divisors is an integer number (2475360).

Almost surely, 2^28712495 is an apocalyptic number.

28712495 is a deficient number, since it is larger than the sum of its proper divisors (10893265).

28712495 is a wasteful number, since it uses less digits than its factorization.

28712495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4774.

The product of its digits is 40320, while the sum is 38.

The square root of 28712495 is about 5358.4041467586. The cubic root of 28712495 is about 306.2130139979.

The spelling of 28712495 in words is "twenty-eight million, seven hundred twelve thousand, four hundred ninety-five".