938281885 has 4 divisors (see below), whose sum is σ = 1125938268. Its totient is φ = 750625504.

The previous prime is 938281879. The next prime is 938281907. The reversal of 938281885 is 588182839.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 588182839 = 103 ⋅5710513.

It can be written as a sum of positive squares in 2 ways, for example, as 224430361 + 713851524 = 14981^2 + 26718^2 .

It is a cyclic number.

It is not a de Polignac number, because 938281885 - 2⁹ = 938281373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93828184 + ... + 93828193.

It is an arithmetic number, because the mean of its divisors is an integer number (281484567).

Almost surely, 2^938281885 is an apocalyptic number.

It is an amenable number.

938281885 is a deficient number, since it is larger than the sum of its proper divisors (187656383).

938281885 is a wasteful number, since it uses less digits than its factorization.

938281885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187656382.

The product of its digits is 1105920, while the sum is 52.

The square root of 938281885 is about 30631.3872522940. The cubic root of 938281885 is about 978.9889214671.

The spelling of 938281885 in words is "nine hundred thirty-eight million, two hundred eighty-one thousand, eight hundred eighty-five".