28062887 has 4 divisors (see below), whose sum is σ = 28167480. Its totient is φ = 27958296.

The previous prime is 28062851. The next prime is 28062899. The reversal of 28062887 is 78826082.

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

It is a cyclic number.

It is not a de Polignac number, because 28062887 - 2⁶ = 28062823 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 (28062817) 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 3 ways as a sum of consecutive naturals, for example, 51893 + ... + 52430.

It is an arithmetic number, because the mean of its divisors is an integer number (7041870).

Almost surely, 2^28062887 is an apocalyptic number.

28062887 is a deficient number, since it is larger than the sum of its proper divisors (104593).

28062887 is a wasteful number, since it uses less digits than its factorization.

28062887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104592.

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 28062887 is about 5297.4415522967. The cubic root of 28062887 is about 303.8860628830.

The spelling of 28062887 in words is "twenty-eight million, sixty-two thousand, eight hundred eighty-seven".