31914343 has 4 divisors (see below), whose sum is σ = 31938048. Its totient is φ = 31890640.

The previous prime is 31914329. The next prime is 31914347. The reversal of 31914343 is 34341913.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34341913 = 47 ⋅730679.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31914343 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 (31914347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9703 + ... + 12568.

It is an arithmetic number, because the mean of its divisors is an integer number (7984512).

Almost surely, 2^31914343 is an apocalyptic number.

31914343 is a deficient number, since it is larger than the sum of its proper divisors (23705).

31914343 is a wasteful number, since it uses less digits than its factorization.

31914343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23704.

The product of its digits is 3888, while the sum is 28.

The square root of 31914343 is about 5649.2780954738. The cubic root of 31914343 is about 317.1966822372.

The spelling of 31914343 in words is "thirty-one million, nine hundred fourteen thousand, three hundred forty-three".