27696831 has 8 divisors (see below), whose sum is σ = 37927344. Its totient is φ = 17965440.

The previous prime is 27696829. The next prime is 27696833. The reversal of 27696831 is 13869672.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (27696829) and next prime (27696833).

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

It is not a de Polignac number, because 27696831 - 2¹ = 27696829 is a prime.

It is a super-2 number, since 2×27696831² = 1534228894885122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27696833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124650 + ... + 124871.

It is an arithmetic number, because the mean of its divisors is an integer number (4740918).

Almost surely, 2^27696831 is an apocalyptic number.

27696831 is a deficient number, since it is larger than the sum of its proper divisors (10230513).

27696831 is a wasteful number, since it uses less digits than its factorization.

27696831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249561.

The product of its digits is 108864, while the sum is 42.

The square root of 27696831 is about 5262.7778786493. Note that the first 3 decimals coincide. The cubic root of 27696831 is about 302.5589658063.

The spelling of 27696831 in words is "twenty-seven million, six hundred ninety-six thousand, eight hundred thirty-one".