27730636 has 6 divisors (see below), whose sum is σ = 48528620. Its totient is φ = 13865316.

The previous prime is 27730631. The next prime is 27730667. The reversal of 27730636 is 63603772.

It is a happy number.

It is a super-3 number, since 3×27730636³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (27730631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3466326 + ... + 3466333.

Almost surely, 2^27730636 is an apocalyptic number.

It is an amenable number.

27730636 is a deficient number, since it is larger than the sum of its proper divisors (20797984).

27730636 is a wasteful number, since it uses less digits than its factorization.

27730636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6932663 (or 6932661 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 34.

The square root of 27730636 is about 5265.9886061404. The cubic root of 27730636 is about 302.6820105383.

The spelling of 27730636 in words is "twenty-seven million, seven hundred thirty thousand, six hundred thirty-six".