28102983 has 8 divisors (see below), whose sum is σ = 37521408. Its totient is φ = 18709944.

The previous prime is 28102973. The next prime is 28103003. The reversal of 28102983 is 38920182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28102983 - 2⁴ = 28102967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28102903) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 3591 + ... + 8312.

It is an arithmetic number, because the mean of its divisors is an integer number (4690176).

Almost surely, 2^28102983 is an apocalyptic number.

28102983 is a deficient number, since it is larger than the sum of its proper divisors (9418425).

28102983 is a wasteful number, since it uses less digits than its factorization.

28102983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12693.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 28102983 is about 5301.2246698287. The cubic root of 28102983 is about 304.0307238973.

The spelling of 28102983 in words is "twenty-eight million, one hundred two thousand, nine hundred eighty-three".