27331628 has 12 divisors (see below), whose sum is σ = 48848352. Its totient is φ = 13374960.

The previous prime is 27331627. The next prime is 27331639. The reversal of 27331628 is 82613372.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 27331594 and 27331603.

It is not an unprimeable number, because it can be changed into a prime (27331627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72503 + ... + 72878.

It is an arithmetic number, because the mean of its divisors is an integer number (4070696).

Almost surely, 2^27331628 is an apocalyptic number.

It is an amenable number.

27331628 is a deficient number, since it is larger than the sum of its proper divisors (21516724).

27331628 is a wasteful number, since it uses less digits than its factorization.

27331628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145432 (or 145430 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 27331628 is about 5227.9659524523. The cubic root of 27331628 is about 301.2232572118.

The spelling of 27331628 in words is "twenty-seven million, three hundred thirty-one thousand, six hundred twenty-eight".