214312993 has 2 divisors, whose sum is σ = 214312994. Its totient is φ = 214312992.

The previous prime is 214312981. The next prime is 214313009. The reversal of 214312993 is 399213412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208022929 + 6290064 = 14423^2 + 2508^2 .

It is a cyclic number.

It is not a de Polignac number, because 214312993 - 2⁹ = 214312481 is a prime.

It is not a weakly prime, because it can be changed into another prime (214312963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107156496 + 107156497.

It is an arithmetic number, because the mean of its divisors is an integer number (107156497).

Almost surely, 2^214312993 is an apocalyptic number.

It is an amenable number.

214312993 is a deficient number, since it is larger than the sum of its proper divisors (1).

214312993 is an equidigital number, since it uses as much as digits as its factorization.

214312993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 34.

The square root of 214312993 is about 14639.4328100511. The cubic root of 214312993 is about 598.4338721107.

The spelling of 214312993 in words is "two hundred fourteen million, three hundred twelve thousand, nine hundred ninety-three".