28083106 has 4 divisors (see below), whose sum is σ = 42124662. Its totient is φ = 14041552.

The previous prime is 28083103. The next prime is 28083109. The reversal of 28083106 is 60138082.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60138082 = 2 ⋅30069041.

It is an interprime number because it is at equal distance from previous prime (28083103) and next prime (28083109).

It can be written as a sum of positive squares in only one way, i.e., 23609881 + 4473225 = 4859^2 + 2115^2 .

It is not an unprimeable number, because it can be changed into a prime (28083101) 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, 7020775 + ... + 7020778.

Almost surely, 2^28083106 is an apocalyptic number.

28083106 is a deficient number, since it is larger than the sum of its proper divisors (14041556).

28083106 is a wasteful number, since it uses less digits than its factorization.

28083106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14041555.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 28083106 is about 5299.3495827318. The cubic root of 28083106 is about 303.9590275459.

The spelling of 28083106 in words is "twenty-eight million, eighty-three thousand, one hundred six".