28375087 has 8 divisors (see below), whose sum is σ = 31135104. Its totient is φ = 25697568.

The previous prime is 28375073. The next prime is 28375093. The reversal of 28375087 is 78057382.

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

It is not a de Polignac number, because 28375087 - 2⁷ = 28374959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28375687) 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, 19903 + ... + 21280.

It is an arithmetic number, because the mean of its divisors is an integer number (3891888).

Almost surely, 2^28375087 is an apocalyptic number.

28375087 is a deficient number, since it is larger than the sum of its proper divisors (2760017).

28375087 is a wasteful number, since it uses less digits than its factorization.

28375087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41249.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 28375087 is about 5326.8271043840. The cubic root of 28375087 is about 305.0088217461.

The spelling of 28375087 in words is "twenty-eight million, three hundred seventy-five thousand, eighty-seven".