213427704 has 128 divisors (see below), whose sum is σ = 640742400. Its totient is φ = 57953280.

The previous prime is 213427681. The next prime is 213427723. The reversal of 213427704 is 407724312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 345604 + ... + 346220.

It is an arithmetic number, because the mean of its divisors is an integer number (5005800).

Almost surely, 2^213427704 is an apocalyptic number.

213427704 is a gapful number since it is divisible by the number (24) 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 213427704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320371200).

213427704 is an abundant number, since it is smaller than the sum of its proper divisors (427314696).

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

213427704 is a wasteful number, since it uses less digits than its factorization.

213427704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733 (or 729 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 213427704 is about 14609.1650685452. The cubic root of 213427704 is about 597.6087267927.

The spelling of 213427704 in words is "two hundred thirteen million, four hundred twenty-seven thousand, seven hundred four".