31344671 has 2 divisors, whose sum is σ = 31344672. Its totient is φ = 31344670.

The previous prime is 31344631. The next prime is 31344697. The reversal of 31344671 is 17644313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31344671 - 2¹⁴ = 31328287 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31344631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15672335 + 15672336.

It is an arithmetic number, because the mean of its divisors is an integer number (15672336).

Almost surely, 2^31344671 is an apocalyptic number.

31344671 is a deficient number, since it is larger than the sum of its proper divisors (1).

31344671 is an equidigital number, since it uses as much as digits as its factorization.

31344671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 29.

The square root of 31344671 is about 5598.6311719920. The cubic root of 31344671 is about 315.2980164424.

Adding to 31344671 its reverse (17644313), we get a palindrome (48988984).

The spelling of 31344671 in words is "thirty-one million, three hundred forty-four thousand, six hundred seventy-one".