28687495 has 8 divisors (see below), whose sum is σ = 35264880. Its totient is φ = 22390080.

The previous prime is 28687489. The next prime is 28687499. The reversal of 28687495 is 59478682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28687495 - 2⁷ = 28687367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28687499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69765 + ... + 70174.

It is an arithmetic number, because the mean of its divisors is an integer number (4408110).

Almost surely, 2^28687495 is an apocalyptic number.

28687495 is a deficient number, since it is larger than the sum of its proper divisors (6577385).

28687495 is a wasteful number, since it uses less digits than its factorization.

28687495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139985.

The product of its digits is 967680, while the sum is 49.

The square root of 28687495 is about 5356.0708546471. The cubic root of 28687495 is about 306.1241148588.

The spelling of 28687495 in words is "twenty-eight million, six hundred eighty-seven thousand, four hundred ninety-five".