213383736 has 96 divisors (see below), whose sum is σ = 598253760. Its totient is φ = 68656896.

The previous prime is 213383717. The next prime is 213383743. The reversal of 213383736 is 637383312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 213383736.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 460641 + ... + 461103.

It is an arithmetic number, because the mean of its divisors is an integer number (6231810).

Almost surely, 2^213383736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213383736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299126880).

213383736 is an abundant number, since it is smaller than the sum of its proper divisors (384870024).

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

213383736 is a wasteful number, since it uses less digits than its factorization.

213383736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685 (or 678 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 213383736 is about 14607.6601822468. The cubic root of 213383736 is about 597.5676864083.

The spelling of 213383736 in words is "two hundred thirteen million, three hundred eighty-three thousand, seven hundred thirty-six".