27987346 has 8 divisors (see below), whose sum is σ = 42015564. Its totient is φ = 13982160.

The previous prime is 27987341. The next prime is 27987353. The reversal of 27987346 is 64378972.

It can be written as a sum of positive squares in 2 ways, for example, as 27447121 + 540225 = 5239^2 + 735^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×27987346² = 1566583072247432, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27987296 and 27987305.

It is not an unprimeable number, because it can be changed into a prime (27987341) 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, 2305 + ... + 7828.

Almost surely, 2^27987346 is an apocalyptic number.

27987346 is a deficient number, since it is larger than the sum of its proper divisors (14028218).

27987346 is a wasteful number, since it uses less digits than its factorization.

27987346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11516.

The product of its digits is 508032, while the sum is 46.

The square root of 27987346 is about 5290.3067963966. The cubic root of 27987346 is about 303.6131462510.

The spelling of 27987346 in words is "twenty-seven million, nine hundred eighty-seven thousand, three hundred forty-six".