28148883 has 24 divisors (see below), whose sum is σ = 44495568. Its totient is φ = 15777216.

The previous prime is 28148881. The next prime is 28148903. The reversal of 28148883 is 38884182.

It is not a de Polignac number, because 28148883 - 2¹ = 28148881 is a prime.

It is a super-2 number, since 2×28148883² = 1584719228295378, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28148881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5985 + ... + 9597.

It is an arithmetic number, because the mean of its divisors is an integer number (1853982).

Almost surely, 2^28148883 is an apocalyptic number.

28148883 is a deficient number, since it is larger than the sum of its proper divisors (16346685).

28148883 is a wasteful number, since it uses less digits than its factorization.

28148883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3683 (or 3676 counting only the distinct ones).

The product of its digits is 98304, while the sum is 42.

The square root of 28148883 is about 5305.5520919128. The cubic root of 28148883 is about 304.1961561534.

The spelling of 28148883 in words is "twenty-eight million, one hundred forty-eight thousand, eight hundred eighty-three".