213827500 has 30 divisors (see below), whose sum is σ = 467603444. Its totient is φ = 85530000.

The previous prime is 213827489. The next prime is 213827503. The reversal of 213827500 is 5728312.

It is not an unprimeable number, because it can be changed into a prime (213827503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 40266 + ... + 45265.

Almost surely, 2^213827500 is an apocalyptic number.

213827500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213827500 is an abundant number, since it is smaller than the sum of its proper divisors (253775944).

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

213827500 is an equidigital number, since it uses as much as digits as its factorization.

213827500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85555 (or 85538 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 213827500 is about 14622.8417210883. The cubic root of 213827500 is about 597.9816439372.

It can be divided in two parts, 21382 and 7500, that added together give a palindrome (28882).

The spelling of 213827500 in words is "two hundred thirteen million, eight hundred twenty-seven thousand, five hundred".