213887850 has 48 divisors (see below), whose sum is σ = 578668320. Its totient is φ = 51851200.

The previous prime is 213887831. The next prime is 213887873. The reversal of 213887850 is 58788312.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63165 + ... + 66464.

It is an arithmetic number, because the mean of its divisors is an integer number (12055590).

Almost surely, 2^213887850 is an apocalyptic number.

213887850 is an abundant number, since it is smaller than the sum of its proper divisors (364780470).

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

213887850 is a wasteful number, since it uses less digits than its factorization.

213887850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129655 (or 129650 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 213887850 is about 14624.9051278974. The cubic root of 213887850 is about 598.0378961305.

The spelling of 213887850 in words is "two hundred thirteen million, eight hundred eighty-seven thousand, eight hundred fifty".