213715860 has 48 divisors (see below), whose sum is σ = 617713152. Its totient is φ = 55152000.

The previous prime is 213715849. The next prime is 213715867. The reversal of 213715860 is 68517312.

213715860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213715867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55591 + ... + 59310.

It is an arithmetic number, because the mean of its divisors is an integer number (12869024).

Almost surely, 2^213715860 is an apocalyptic number.

213715860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213715860 is an abundant number, since it is smaller than the sum of its proper divisors (403997292).

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

213715860 is a wasteful number, since it uses less digits than its factorization.

213715860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114944 (or 114942 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 213715860 is about 14619.0239072244. The cubic root of 213715860 is about 597.8775564642.

The spelling of 213715860 in words is "two hundred thirteen million, seven hundred fifteen thousand, eight hundred sixty".