28467855 has 40 divisors (see below), whose sum is σ = 54966912. Its totient is φ = 14012352.

The previous prime is 28467847. The next prime is 28467869. The reversal of 28467855 is 55876482.

It is not a de Polignac number, because 28467855 - 2³ = 28467847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 28467855.

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 2562 + ... + 7968.

Almost surely, 2^28467855 is an apocalyptic number.

28467855 is a deficient number, since it is larger than the sum of its proper divisors (26499057).

28467855 is a wasteful number, since it uses less digits than its factorization.

28467855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5437 (or 5428 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 28467855 is about 5335.5276215197. The cubic root of 28467855 is about 305.3408533719.

It can be divided in two parts, 2846 and 7855, that added together give a palindrome (10701).

The spelling of 28467855 in words is "twenty-eight million, four hundred sixty-seven thousand, eight hundred fifty-five".