213217606 has 16 divisors (see below), whose sum is σ = 375395616. Its totient is φ = 88909056.

The previous prime is 213217591. The next prime is 213217619. The reversal of 213217606 is 606712312.

213217606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205291 + ... + 206326.

It is an arithmetic number, because the mean of its divisors is an integer number (23462226).

Almost surely, 2^213217606 is an apocalyptic number.

213217606 is a deficient number, since it is larger than the sum of its proper divisors (162178010).

213217606 is a wasteful number, since it uses less digits than its factorization.

213217606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411663.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 213217606 is about 14601.9726749505. The cubic root of 213217606 is about 597.4125672851.

Adding to 213217606 its reverse (606712312), we get a palindrome (819929918).

The spelling of 213217606 in words is "two hundred thirteen million, two hundred seventeen thousand, six hundred six".