28495787 has 8 divisors (see below), whose sum is σ = 28924896. Its totient is φ = 28069632.

The previous prime is 28495783. The next prime is 28495807. The reversal of 28495787 is 78759482.

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

It is a cyclic number.

It is not a de Polignac number, because 28495787 - 2² = 28495783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28495783) 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, 24953 + ... + 26069.

It is an arithmetic number, because the mean of its divisors is an integer number (3615612).

Almost surely, 2^28495787 is an apocalyptic number.

28495787 is a deficient number, since it is larger than the sum of its proper divisors (429109).

28495787 is a wasteful number, since it uses less digits than its factorization.

28495787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477.

The product of its digits is 1128960, while the sum is 50.

The square root of 28495787 is about 5338.1445278299. The cubic root of 28495787 is about 305.4406851860.

The spelling of 28495787 in words is "twenty-eight million, four hundred ninety-five thousand, seven hundred eighty-seven".