31327077 has 4 divisors (see below), whose sum is σ = 41769440. Its totient is φ = 20884716.

The previous prime is 31327063. The next prime is 31327097. The reversal of 31327077 is 77072313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77072313 = 3 ⋅25690771.

It is not a de Polignac number, because 31327077 - 2¹² = 31322981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31327007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5221177 + ... + 5221182.

It is an arithmetic number, because the mean of its divisors is an integer number (10442360).

Almost surely, 2^31327077 is an apocalyptic number.

It is an amenable number.

31327077 is a deficient number, since it is larger than the sum of its proper divisors (10442363).

31327077 is a wasteful number, since it uses less digits than its factorization.

31327077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10442362.

The product of its (nonzero) digits is 6174, while the sum is 30.

The square root of 31327077 is about 5597.0596745077. The cubic root of 31327077 is about 315.2390123505.

The spelling of 31327077 in words is "thirty-one million, three hundred twenty-seven thousand, seventy-seven".