213862812 has 24 divisors (see below), whose sum is σ = 512501136. Its totient is φ = 69360768.

The previous prime is 213862811. The next prime is 213862813. The reversal of 213862812 is 218268312.

It is an interprime number because it is at equal distance from previous prime (213862811) and next prime (213862813).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213862811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240393 + ... + 241280.

It is an arithmetic number, because the mean of its divisors is an integer number (21354214).

Almost surely, 2^213862812 is an apocalyptic number.

It is an amenable number.

213862812 is an abundant number, since it is smaller than the sum of its proper divisors (298638324).

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

213862812 is a wasteful number, since it uses less digits than its factorization.

213862812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481717 (or 481715 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 213862812 is about 14624.0490972918. The cubic root of 213862812 is about 598.0145595125.

The spelling of 213862812 in words is "two hundred thirteen million, eight hundred sixty-two thousand, eight hundred twelve".