31344497 has 2 divisors, whose sum is σ = 31344498. Its totient is φ = 31344496.

The previous prime is 31344457. The next prime is 31344499. The reversal of 31344497 is 79444313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30514576 + 829921 = 5524^2 + 911^2 .

It is a cyclic number.

It is not a de Polignac number, because 31344497 - 2¹⁴ = 31328113 is a prime.

Together with 31344499, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_1935908 and since 31344497 and 1935908 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (31344499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15672248 + 15672249.

It is an arithmetic number, because the mean of its divisors is an integer number (15672249).

Almost surely, 2^31344497 is an apocalyptic number.

It is an amenable number.

31344497 is a deficient number, since it is larger than the sum of its proper divisors (1).

31344497 is an equidigital number, since it uses as much as digits as its factorization.

31344497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 35.

The square root of 31344497 is about 5598.6156324577. The cubic root of 31344497 is about 315.2974330157.

The spelling of 31344497 in words is "thirty-one million, three hundred forty-four thousand, four hundred ninety-seven".