213067663 has 4 divisors (see below), whose sum is σ = 216068688. Its totient is φ = 210066640.

The previous prime is 213067651. The next prime is 213067697. The reversal of 213067663 is 366760312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213067663 - 2²⁵ = 179513231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213067633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1500406 + ... + 1500547.

It is an arithmetic number, because the mean of its divisors is an integer number (54017172).

Almost surely, 2^213067663 is an apocalyptic number.

213067663 is a deficient number, since it is larger than the sum of its proper divisors (3001025).

213067663 is an equidigital number, since it uses as much as digits as its factorization.

213067663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001024.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 213067663 is about 14596.8374314438. The cubic root of 213067663 is about 597.2724931128.

The spelling of 213067663 in words is "two hundred thirteen million, sixty-seven thousand, six hundred sixty-three".