27331983 has 24 divisors (see below), whose sum is σ = 45671808. Its totient is φ = 15427152.

The previous prime is 27331943. The next prime is 27331991. The reversal of 27331983 is 38913372.

It is a happy number.

It is a Cunningham number, because it is equal to 5228²-1.

It is not a de Polignac number, because 27331983 - 2¹⁰ = 27330959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27331943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2616 + ... + 7842.

It is an arithmetic number, because the mean of its divisors is an integer number (1902992).

Almost surely, 2^27331983 is an apocalyptic number.

27331983 is a deficient number, since it is larger than the sum of its proper divisors (18339825).

27331983 is a wasteful number, since it uses less digits than its factorization.

27331983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5323 (or 5320 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 27331983 is about 5227.9999043611. Note that the first 4 decimals coincide. The cubic root of 27331983 is about 301.2245613638.

The spelling of 27331983 in words is "twenty-seven million, three hundred thirty-one thousand, nine hundred eighty-three".