28148486 has 4 divisors (see below), whose sum is σ = 42222732. Its totient is φ = 14074242.

The previous prime is 28148437. The next prime is 28148489. The reversal of 28148486 is 68484182.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28148489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7037120 + ... + 7037123.

It is an arithmetic number, because the mean of its divisors is an integer number (10555683).

Almost surely, 2^28148486 is an apocalyptic number.

28148486 is a deficient number, since it is larger than the sum of its proper divisors (14074246).

28148486 is a wasteful number, since it uses less digits than its factorization.

28148486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14074245.

The product of its digits is 98304, while the sum is 41.

The square root of 28148486 is about 5305.5146781439. The cubic root of 28148486 is about 304.1947260618.

The spelling of 28148486 in words is "twenty-eight million, one hundred forty-eight thousand, four hundred eighty-six".