938571493 has 2 divisors, whose sum is σ = 938571494. Its totient is φ = 938571492.

The previous prime is 938571461. The next prime is 938571497. The reversal of 938571493 is 394175839.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 617373409 + 321198084 = 24847^2 + 17922^2 .

It is a cyclic number.

It is not a de Polignac number, because 938571493 - 2⁵ = 938571461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (938571497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469285746 + 469285747.

It is an arithmetic number, because the mean of its divisors is an integer number (469285747).

Almost surely, 2^938571493 is an apocalyptic number.

It is an amenable number.

938571493 is a deficient number, since it is larger than the sum of its proper divisors (1).

938571493 is an equidigital number, since it uses as much as digits as its factorization.

938571493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 49.

The square root of 938571493 is about 30636.1141955046. The cubic root of 938571493 is about 979.0896352869.

The spelling of 938571493 in words is "nine hundred thirty-eight million, five hundred seventy-one thousand, four hundred ninety-three".