28892087 has 8 divisors (see below), whose sum is σ = 33787776. Its totient is φ = 24188472.

The previous prime is 28892081. The next prime is 28892107. The reversal of 28892087 is 78029882.

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

It is not a de Polignac number, because 28892087 - 2¹⁴ = 28875703 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 (28892081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47693 + ... + 48294.

It is an arithmetic number, because the mean of its divisors is an integer number (4223472).

Almost surely, 2^28892087 is an apocalyptic number.

28892087 is a deficient number, since it is larger than the sum of its proper divisors (4895689).

28892087 is an equidigital number, since it uses as much as digits as its factorization.

28892087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96037.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 28892087 is about 5375.1359982795. The cubic root of 28892087 is about 306.8501250779.

The spelling of 28892087 in words is "twenty-eight million, eight hundred ninety-two thousand, eighty-seven".