27903828 has 12 divisors (see below), whose sum is σ = 65108960. Its totient is φ = 9301272.

The previous prime is 27903823. The next prime is 27903839. The reversal of 27903828 is 82830972.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27903823) 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, 1162648 + ... + 1162671.

Almost surely, 2^27903828 is an apocalyptic number.

It is an amenable number.

27903828 is an abundant number, since it is smaller than the sum of its proper divisors (37205132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27903828 is a wasteful number, since it uses less digits than its factorization.

27903828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2325326 (or 2325324 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 27903828 is about 5282.4074057195. The cubic root of 27903828 is about 303.3108378707.

The spelling of 27903828 in words is "twenty-seven million, nine hundred three thousand, eight hundred twenty-eight".