213011796 has 12 divisors (see below), whose sum is σ = 497027552. Its totient is φ = 71003928.

The previous prime is 213011783. The next prime is 213011797. The reversal of 213011796 is 697110312.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213011797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8875480 + ... + 8875503.

Almost surely, 2^213011796 is an apocalyptic number.

It is an amenable number.

213011796 is an abundant number, since it is smaller than the sum of its proper divisors (284015756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213011796 is a wasteful number, since it uses less digits than its factorization.

213011796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17750990 (or 17750988 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 213011796 is about 14594.9236380325. The cubic root of 213011796 is about 597.2202863182.

The spelling of 213011796 in words is "two hundred thirteen million, eleven thousand, seven hundred ninety-six".