28468087 has 4 divisors (see below), whose sum is σ = 28811160. Its totient is φ = 28125016.

The previous prime is 28468039. The next prime is 28468103. The reversal of 28468087 is 78086482.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28468087 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 (28460087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171412 + ... + 171577.

It is an arithmetic number, because the mean of its divisors is an integer number (7202790).

Almost surely, 2^28468087 is an apocalyptic number.

28468087 is a deficient number, since it is larger than the sum of its proper divisors (343073).

28468087 is an equidigital number, since it uses as much as digits as its factorization.

28468087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343072.

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 28468087 is about 5335.5493625305. The cubic root of 28468087 is about 305.3416828324.

The spelling of 28468087 in words is "twenty-eight million, four hundred sixty-eight thousand, eighty-seven".