27310993 has 4 divisors (see below), whose sum is σ = 28917540. Its totient is φ = 25704448.

The previous prime is 27310973. The next prime is 27311017. The reversal of 27310993 is 39901372.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15429184 + 11881809 = 3928^2 + 3447^2 .

It is a cyclic number.

It is not a de Polignac number, because 27310993 - 2¹³ = 27302801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27310903) 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, 803248 + ... + 803281.

It is an arithmetic number, because the mean of its divisors is an integer number (7229385).

Almost surely, 2^27310993 is an apocalyptic number.

It is an amenable number.

27310993 is a deficient number, since it is larger than the sum of its proper divisors (1606547).

27310993 is a wasteful number, since it uses less digits than its factorization.

27310993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606546.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 27310993 is about 5225.9920589301. The cubic root of 27310993 is about 301.1474316660.

The spelling of 27310993 in words is "twenty-seven million, three hundred ten thousand, nine hundred ninety-three".