214291663 has 2 divisors, whose sum is σ = 214291664. Its totient is φ = 214291662.

The previous prime is 214291631. The next prime is 214291691. The reversal of 214291663 is 366192412.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 214291663 - 2⁵ = 214291631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214297663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107145831 + 107145832.

It is an arithmetic number, because the mean of its divisors is an integer number (107145832).

Almost surely, 2^214291663 is an apocalyptic number.

214291663 is a deficient number, since it is larger than the sum of its proper divisors (1).

214291663 is an equidigital number, since it uses as much as digits as its factorization.

214291663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 34.

The square root of 214291663 is about 14638.7042800926. The cubic root of 214291663 is about 598.4140179435.

The spelling of 214291663 in words is "two hundred fourteen million, two hundred ninety-one thousand, six hundred sixty-three".