28148854 has 4 divisors (see below), whose sum is σ = 42223284. Its totient is φ = 14074426.

The previous prime is 28148819. The next prime is 28148863. The reversal of 28148854 is 45884182.

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

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 as a sum of consecutive naturals, namely, 7037212 + ... + 7037215.

It is an arithmetic number, because the mean of its divisors is an integer number (10555821).

Almost surely, 2^28148854 is an apocalyptic number.

28148854 is a deficient number, since it is larger than the sum of its proper divisors (14074430).

28148854 is a wasteful number, since it uses less digits than its factorization.

28148854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14074429.

The product of its digits is 81920, while the sum is 40.

The square root of 28148854 is about 5305.5493589260. The cubic root of 28148854 is about 304.1960516887.

The spelling of 28148854 in words is "twenty-eight million, one hundred forty-eight thousand, eight hundred fifty-four".