28333916 has 12 divisors (see below), whose sum is σ = 53398632. Its totient is φ = 13077168.

The previous prime is 28333901. The next prime is 28333933. The reversal of 28333916 is 61933382.

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 in 3 ways as a sum of consecutive naturals, for example, 272390 + ... + 272493.

It is an arithmetic number, because the mean of its divisors is an integer number (4449886).

Almost surely, 2^28333916 is an apocalyptic number.

28333916 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28333916 is a deficient number, since it is larger than the sum of its proper divisors (25064716).

28333916 is a wasteful number, since it uses less digits than its factorization.

28333916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544900 (or 544898 counting only the distinct ones).

The product of its digits is 23328, while the sum is 35.

The square root of 28333916 is about 5322.9612059454. The cubic root of 28333916 is about 304.8612322242.

The spelling of 28333916 in words is "twenty-eight million, three hundred thirty-three thousand, nine hundred sixteen".