214663693 has 2 divisors, whose sum is σ = 214663694. Its totient is φ = 214663692.

The previous prime is 214663679. The next prime is 214663717. The reversal of 214663693 is 396366412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172712164 + 41951529 = 13142^2 + 6477^2 .

It is a cyclic number.

It is not a de Polignac number, because 214663693 - 2¹⁷ = 214532621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214663093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107331846 + 107331847.

It is an arithmetic number, because the mean of its divisors is an integer number (107331847).

Almost surely, 2^214663693 is an apocalyptic number.

It is an amenable number.

214663693 is a deficient number, since it is larger than the sum of its proper divisors (1).

214663693 is an equidigital number, since it uses as much as digits as its factorization.

214663693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 40.

The square root of 214663693 is about 14651.4058369837. The cubic root of 214663693 is about 598.7601182908.

The spelling of 214663693 in words is "two hundred fourteen million, six hundred sixty-three thousand, six hundred ninety-three".