27964331 has 2 divisors, whose sum is σ = 27964332. Its totient is φ = 27964330.

The previous prime is 27964327. The next prime is 27964361. The reversal of 27964331 is 13346972.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27964331 - 2² = 27964327 is a prime.

It is a super-2 number, since 2×27964331² = 1564007616555122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 27964291 and 27964300.

It is not a weakly prime, because it can be changed into another prime (27964301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13982165 + 13982166.

It is an arithmetic number, because the mean of its divisors is an integer number (13982166).

Almost surely, 2^27964331 is an apocalyptic number.

27964331 is a deficient number, since it is larger than the sum of its proper divisors (1).

27964331 is an equidigital number, since it uses as much as digits as its factorization.

27964331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 35.

The square root of 27964331 is about 5288.1311443647. The cubic root of 27964331 is about 303.5298994289.

The spelling of 27964331 in words is "twenty-seven million, nine hundred sixty-four thousand, three hundred thirty-one".