28481846 has 4 divisors (see below), whose sum is σ = 42722772. Its totient is φ = 14240922.

The previous prime is 28481833. The next prime is 28481891. The reversal of 28481846 is 64818482.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64818482 = 2 ⋅32409241.

It is a super-2 number, since 2×28481846² = 1622431103135432, which contains 22 as substring.

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, 7120460 + ... + 7120463.

It is an arithmetic number, because the mean of its divisors is an integer number (10680693).

Almost surely, 2^28481846 is an apocalyptic number.

28481846 is a deficient number, since it is larger than the sum of its proper divisors (14240926).

28481846 is a wasteful number, since it uses less digits than its factorization.

28481846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14240925.

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

The square root of 28481846 is about 5336.8385772852. The cubic root of 28481846 is about 305.3908667902.

It can be divided in two parts, 2 and 8481846, that added together give a palindrome (8481848).

The spelling of 28481846 in words is "twenty-eight million, four hundred eighty-one thousand, eight hundred forty-six".