212892813 has 32 divisors (see below), whose sum is σ = 361324800. Its totient is φ = 121359168.

The previous prime is 212892811. The next prime is 212892821. The reversal of 212892813 is 318298212.

212892813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212892813 - 2¹ = 212892811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212892811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95095 + ... + 97307.

It is an arithmetic number, because the mean of its divisors is an integer number (11291400).

Almost surely, 2^212892813 is an apocalyptic number.

It is an amenable number.

212892813 is a deficient number, since it is larger than the sum of its proper divisors (148431987).

212892813 is a wasteful number, since it uses less digits than its factorization.

212892813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738 (or 2732 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 212892813 is about 14590.8468911164. The cubic root of 212892813 is about 597.1090682270.

It can be divided in two parts, 212 and 892813, that added together give a square (893025 = 945²).

The spelling of 212892813 in words is "two hundred twelve million, eight hundred ninety-two thousand, eight hundred thirteen".