938534409 has 6 divisors (see below), whose sum is σ = 1355660826. Its totient is φ = 625689600.

The previous prime is 938534407. The next prime is 938534423. The reversal of 938534409 is 904435839.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 881199225 + 57335184 = 29685^2 + 7572^2 .

It is not a de Polignac number, because 938534409 - 2¹ = 938534407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (938534407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52140792 + ... + 52140809.

It is an arithmetic number, because the mean of its divisors is an integer number (225943471).

Almost surely, 2^938534409 is an apocalyptic number.

It is an amenable number.

938534409 is a deficient number, since it is larger than the sum of its proper divisors (417126417).

938534409 is a wasteful number, since it uses less digits than its factorization.

938534409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104281607 (or 104281604 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 938534409 is about 30635.5089561117. The cubic root of 938534409 is about 979.0767401448.

The spelling of 938534409 in words is "nine hundred thirty-eight million, five hundred thirty-four thousand, four hundred nine".