28087914 has 16 divisors (see below), whose sum is σ = 56240352. Its totient is φ = 9351888.

The previous prime is 28087907. The next prime is 28087919. The reversal of 28087914 is 41978082.

It is not an unprimeable number, because it can be changed into a prime (28087919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4417 + ... + 8699.

It is an arithmetic number, because the mean of its divisors is an integer number (3515022).

Almost surely, 2^28087914 is an apocalyptic number.

28087914 is an abundant number, since it is smaller than the sum of its proper divisors (28152438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28087914 is a wasteful number, since it uses less digits than its factorization.

28087914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5381.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 28087914 is about 5299.8032038935. The cubic root of 28087914 is about 303.9763731061.

The spelling of 28087914 in words is "twenty-eight million, eighty-seven thousand, nine hundred fourteen".