213601694 has 8 divisors (see below), whose sum is σ = 321056568. Its totient is φ = 106582840.

The previous prime is 213601693. The next prime is 213601727. The reversal of 213601694 is 496106312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 213601694.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213601693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107777 + ... + 109740.

It is an arithmetic number, because the mean of its divisors is an integer number (40132071).

Almost surely, 2^213601694 is an apocalyptic number.

213601694 is a deficient number, since it is larger than the sum of its proper divisors (107454874).

213601694 is a wasteful number, since it uses less digits than its factorization.

213601694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218010.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 213601694 is about 14615.1186789571. The cubic root of 213601694 is about 597.7710763821.

The spelling of 213601694 in words is "two hundred thirteen million, six hundred one thousand, six hundred ninety-four".