28337788 has 12 divisors (see below), whose sum is σ = 49762440. Its totient is φ = 14119952.

The previous prime is 28337783. The next prime is 28337807. The reversal of 28337788 is 88773382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28337783) 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 3 ways as a sum of consecutive naturals, for example, 10918 + ... + 13261.

It is an arithmetic number, because the mean of its divisors is an integer number (4146870).

Almost surely, 2^28337788 is an apocalyptic number.

It is an amenable number.

28337788 is a deficient number, since it is larger than the sum of its proper divisors (21424652).

28337788 is a wasteful number, since it uses less digits than its factorization.

28337788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24476 (or 24474 counting only the distinct ones).

The product of its digits is 451584, while the sum is 46.

The square root of 28337788 is about 5323.3249008491. The cubic root of 28337788 is about 304.8751186319.

The spelling of 28337788 in words is "twenty-eight million, three hundred thirty-seven thousand, seven hundred eighty-eight".