213730892 has 6 divisors (see below), whose sum is σ = 374029068. Its totient is φ = 106865444.

The previous prime is 213730883. The next prime is 213730897. The reversal of 213730892 is 298037312.

213730892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (213730897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26716358 + ... + 26716365.

It is an arithmetic number, because the mean of its divisors is an integer number (62338178).

Almost surely, 2^213730892 is an apocalyptic number.

It is an amenable number.

213730892 is a deficient number, since it is larger than the sum of its proper divisors (160298176).

213730892 is a wasteful number, since it uses less digits than its factorization.

213730892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53432727 (or 53432725 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 213730892 is about 14619.5380227968. The cubic root of 213730892 is about 597.8915736499.

The spelling of 213730892 in words is "two hundred thirteen million, seven hundred thirty thousand, eight hundred ninety-two".