213851700 has 108 divisors (see below), whose sum is σ = 699517728. Its totient is φ = 54542400.

The previous prime is 213851689. The next prime is 213851711. The reversal of 213851700 is 7158312.

It is an interprime number because it is at equal distance from previous prime (213851689) and next prime (213851711).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15535 + ... + 25865.

It is an arithmetic number, because the mean of its divisors is an integer number (6477016).

Almost surely, 2^213851700 is an apocalyptic number.

213851700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213851700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349758864).

213851700 is an abundant number, since it is smaller than the sum of its proper divisors (485666028).

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

213851700 is a wasteful number, since it uses less digits than its factorization.

213851700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10374 (or 10364 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 213851700 is about 14623.6691702185. The cubic root of 213851700 is about 598.0042020115.

The spelling of 213851700 in words is "two hundred thirteen million, eight hundred fifty-one thousand, seven hundred".