438927213 has 4 divisors (see below), whose sum is σ = 585236288. Its totient is φ = 292618140.

The previous prime is 438927191. The next prime is 438927259. The reversal of 438927213 is 312729834.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 438927213 - 2⁶ = 438927149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438927283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73154533 + ... + 73154538.

It is an arithmetic number, because the mean of its divisors is an integer number (146309072).

Almost surely, 2^438927213 is an apocalyptic number.

It is an amenable number.

438927213 is a deficient number, since it is larger than the sum of its proper divisors (146309075).

438927213 is a wasteful number, since it uses less digits than its factorization.

438927213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146309074.

The product of its digits is 72576, while the sum is 39.

The square root of 438927213 is about 20950.5898007669. The cubic root of 438927213 is about 759.9718439477.

The spelling of 438927213 in words is "four hundred thirty-eight million, nine hundred twenty-seven thousand, two hundred thirteen".