213923608 has 16 divisors (see below), whose sum is σ = 401536080. Its totient is φ = 106847328.

The previous prime is 213923599. The next prime is 213923623. The reversal of 213923608 is 806329312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6091 + ... + 21562.

It is an arithmetic number, because the mean of its divisors is an integer number (25096005).

Almost surely, 2^213923608 is an apocalyptic number.

It is an amenable number.

213923608 is a deficient number, since it is larger than the sum of its proper divisors (187612472).

213923608 is a wasteful number, since it uses less digits than its factorization.

213923608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28626 (or 28622 counting only the distinct ones).

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

The square root of 213923608 is about 14626.1275804637. The cubic root of 213923608 is about 598.0712211456.

The spelling of 213923608 in words is "two hundred thirteen million, nine hundred twenty-three thousand, six hundred eight".