938893121 has 8 divisors (see below), whose sum is σ = 945271080. Its totient is φ = 932537088.

The previous prime is 938893091. The next prime is 938893133. The reversal of 938893121 is 121398839.

It can be written as a sum of positive squares in 4 ways, for example, as 83521 + 938809600 = 289^2 + 30640^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-938893121 is a prime.

It is a super-2 number, since 2×938893121² = 1763040585322241282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (938896121) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 85475 + ... + 95831.

It is an arithmetic number, because the mean of its divisors is an integer number (118158885).

Almost surely, 2^938893121 is an apocalyptic number.

It is an amenable number.

938893121 is a deficient number, since it is larger than the sum of its proper divisors (6377959).

938893121 is a wasteful number, since it uses less digits than its factorization.

938893121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10963.

The product of its digits is 93312, while the sum is 44.

The square root of 938893121 is about 30641.3629102884. The cubic root of 938893121 is about 979.2014600761.

The spelling of 938893121 in words is "nine hundred thirty-eight million, eight hundred ninety-three thousand, one hundred twenty-one".