931214393 has 2 divisors, whose sum is σ = 931214394. Its totient is φ = 931214392.

The previous prime is 931214371. The next prime is 931214437. The reversal of 931214393 is 393412139.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 886431529 + 44782864 = 29773^2 + 6692^2 .

It is a cyclic number.

It is not a de Polignac number, because 931214393 - 2¹² = 931210297 is a prime.

It is a Chen prime.

It is equal to p_47522258 and since 931214393 and 47522258 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 (931214693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 465607196 + 465607197.

It is an arithmetic number, because the mean of its divisors is an integer number (465607197).

Almost surely, 2^931214393 is an apocalyptic number.

It is an amenable number.

931214393 is a deficient number, since it is larger than the sum of its proper divisors (1).

931214393 is an equidigital number, since it uses as much as digits as its factorization.

931214393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 35.

The square root of 931214393 is about 30515.8056259375. The cubic root of 931214393 is about 976.5246863206.

The spelling of 931214393 in words is "nine hundred thirty-one million, two hundred fourteen thousand, three hundred ninety-three".