31427343 has 6 divisors (see below), whose sum is σ = 45395064. Its totient is φ = 20951556.

The previous prime is 31427327. The next prime is 31427351. The reversal of 31427343 is 34372413.

31427343 is a `hidden beast` number, since 314 + 2 + 7 + 343 = 666.

It is not a de Polignac number, because 31427343 - 2⁴ = 31427327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31427243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1745955 + ... + 1745972.

It is an arithmetic number, because the mean of its divisors is an integer number (7565844).

Almost surely, 2^31427343 is an apocalyptic number.

31427343 is a deficient number, since it is larger than the sum of its proper divisors (13967721).

31427343 is a wasteful number, since it uses less digits than its factorization.

31427343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3491933 (or 3491930 counting only the distinct ones).

The product of its digits is 6048, while the sum is 27.

The square root of 31427343 is about 5606.0095433383. The cubic root of 31427343 is about 315.5749740405.

Adding to 31427343 its reverse (34372413), we get a palindrome (65799756).

The spelling of 31427343 in words is "thirty-one million, four hundred twenty-seven thousand, three hundred forty-three".