31296427 has 2 divisors, whose sum is σ = 31296428. Its totient is φ = 31296426.

The previous prime is 31296383. The next prime is 31296431. The reversal of 31296427 is 72469213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31296427 - 2⁷ = 31296299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31296392 and 31296401.

It is not a weakly prime, because it can be changed into another prime (31296457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15648213 + 15648214.

It is an arithmetic number, because the mean of its divisors is an integer number (15648214).

Almost surely, 2^31296427 is an apocalyptic number.

31296427 is a deficient number, since it is larger than the sum of its proper divisors (1).

31296427 is an equidigital number, since it uses as much as digits as its factorization.

31296427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 31296427 is about 5594.3209596876. The cubic root of 31296427 is about 315.1361702359.

The spelling of 31296427 in words is "thirty-one million, two hundred ninety-six thousand, four hundred twenty-seven".