31084 has 12 divisors (see below), whose sum is σ = 57400. Its totient is φ = 14688.

The previous prime is 31081. The next prime is 31091. The reversal of 31084 is 48013.

It is not an unprimeable number, because it can be changed into a prime (31081) 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, 129 + ... + 280.

2³¹⁰⁸⁴ is an apocalyptic number.

It is an amenable number.

31084 is a deficient number, since it is larger than the sum of its proper divisors (26316).

31084 is a wasteful number, since it uses less digits than its factorization.

31084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 31084 is about 176.3065512112. The cubic root of 31084 is about 31.4421546952.

Adding to 31084 its reverse (48013), we get a palindrome (79097).

The spelling of 31084 in words is "thirty-one thousand, eighty-four".