28873910 has 16 divisors (see below), whose sum is σ = 55971216. Its totient is φ = 10661088.

The previous prime is 28873907. The next prime is 28873913. The reversal of 28873910 is 1937882.

It is an interprime number because it is at equal distance from previous prime (28873907) and next prime (28873913).

It is a super-3 number, since 3×28873910³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28873913) 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, 110924 + ... + 111183.

It is an arithmetic number, because the mean of its divisors is an integer number (3498201).

Almost surely, 2^28873910 is an apocalyptic number.

28873910 is a deficient number, since it is larger than the sum of its proper divisors (27097306).

28873910 is a wasteful number, since it uses less digits than its factorization.

28873910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222127.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 28873910 is about 5373.4448913151. Note that the first 3 decimals coincide. The cubic root of 28873910 is about 306.7857616091.

The spelling of 28873910 in words is "twenty-eight million, eight hundred seventy-three thousand, nine hundred ten".