213917484 has 96 divisors (see below), whose sum is σ = 571963392. Its totient is φ = 61632000.

The previous prime is 213917471. The next prime is 213917489. The reversal of 213917484 is 484719312.

It is not an unprimeable number, because it can be changed into a prime (213917489) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249184 + ... + 250040.

It is an arithmetic number, because the mean of its divisors is an integer number (5957952).

Almost surely, 2^213917484 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 213917484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285981696).

213917484 is an abundant number, since it is smaller than the sum of its proper divisors (358045908).

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

213917484 is a wasteful number, since it uses less digits than its factorization.

213917484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967 (or 965 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 213917484 is about 14625.9182275849. The cubic root of 213917484 is about 598.0655140879.

It can be divided in two parts, 2139 and 17484, that multiplied together give a triangular number (37398276 = T₈₆₄₈).

The spelling of 213917484 in words is "two hundred thirteen million, nine hundred seventeen thousand, four hundred eighty-four".