31330084 has 12 divisors (see below), whose sum is σ = 55191808. Its totient is φ = 15561000.

The previous prime is 31330073. The next prime is 31330087. The reversal of 31330084 is 48003313.

It is not an unprimeable number, because it can be changed into a prime (31330087) 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, 25332 + ... + 26539.

Almost surely, 2^31330084 is an apocalyptic number.

It is an amenable number.

31330084 is a deficient number, since it is larger than the sum of its proper divisors (23861724).

31330084 is a wasteful number, since it uses less digits than its factorization.

31330084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52026 (or 52024 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 31330084 is about 5597.3282912475. The cubic root of 31330084 is about 315.2490983365.

Adding to 31330084 its reverse (48003313), we get a palindrome (79333397).

The spelling of 31330084 in words is "thirty-one million, three hundred thirty thousand, eighty-four".