5217931 has 2 divisors, whose sum is σ = 5217932. Its totient is φ = 5217930.

The previous prime is 5217923. The next prime is 5217937. The reversal of 5217931 is 1397125.

5217931 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5217931 - 2³ = 5217923 is a prime.

It is a super-2 number, since 2×5217931² = 54453607841522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5217931.

It is not a weakly prime, because it can be changed into another prime (5217937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2608965 + 2608966.

It is an arithmetic number, because the mean of its divisors is an integer number (2608966).

Almost surely, 2^5217931 is an apocalyptic number.

5217931 is a deficient number, since it is larger than the sum of its proper divisors (1).

5217931 is an equidigital number, since it uses as much as digits as its factorization.

5217931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1890, while the sum is 28.

The square root of 5217931 is about 2284.2790985342. The cubic root of 5217931 is about 173.4467276588.

The spelling of 5217931 in words is "five million, two hundred seventeen thousand, nine hundred thirty-one".