27730534 has 16 divisors (see below), whose sum is σ = 45067680. Its totient is φ = 12796680.

The previous prime is 27730511. The next prime is 27730537. The reversal of 27730534 is 43503772.

It is a junction number, because it is equal to n+sod(n) for n = 27730496 and 27730505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27730537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1239 + ... + 7549.

It is an arithmetic number, because the mean of its divisors is an integer number (2816730).

Almost surely, 2^27730534 is an apocalyptic number.

27730534 is a deficient number, since it is larger than the sum of its proper divisors (17337146).

27730534 is an equidigital number, since it uses as much as digits as its factorization.

27730534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6352 (or 6326 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 31.

The square root of 27730534 is about 5265.9789213403. The cubic root of 27730534 is about 302.6816394252.

The spelling of 27730534 in words is "twenty-seven million, seven hundred thirty thousand, five hundred thirty-four".