938847913 has 4 divisors (see below), whose sum is σ = 938910148. Its totient is φ = 938785680.

The previous prime is 938847901. The next prime is 938847937. The reversal of 938847913 is 319748839.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 867479209 + 71368704 = 29453^2 + 8448^2 .

It is a cyclic number.

It is not a de Polignac number, because 938847913 - 2¹⁷ = 938716841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (938842913) 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, 7423 + ... + 43963.

It is an arithmetic number, because the mean of its divisors is an integer number (234727537).

Almost surely, 2^938847913 is an apocalyptic number.

It is an amenable number.

938847913 is a deficient number, since it is larger than the sum of its proper divisors (62235).

938847913 is a wasteful number, since it uses less digits than its factorization.

938847913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62234.

The product of its digits is 1306368, while the sum is 52.

The square root of 938847913 is about 30640.6252057624. The cubic root of 938847913 is about 979.1857435374.

The spelling of 938847913 in words is "nine hundred thirty-eight million, eight hundred forty-seven thousand, nine hundred thirteen".