938862161 has 4 divisors (see below), whose sum is σ = 964236852. Its totient is φ = 913487472.

The previous prime is 938862151. The next prime is 938862167. The reversal of 938862161 is 161268839.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 763140625 + 175721536 = 27625^2 + 13256^2 .

It is a cyclic number.

It is not a de Polignac number, because 938862161 - 2²⁶ = 871753297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (938862167) 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 3 ways as a sum of consecutive naturals, for example, 12687290 + ... + 12687363.

It is an arithmetic number, because the mean of its divisors is an integer number (241059213).

Almost surely, 2^938862161 is an apocalyptic number.

It is an amenable number.

938862161 is a deficient number, since it is larger than the sum of its proper divisors (25374691).

938862161 is a wasteful number, since it uses less digits than its factorization.

938862161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25374690.

The product of its digits is 124416, while the sum is 44.

The square root of 938862161 is about 30640.8577066635. The cubic root of 938862161 is about 979.1906969019.

The spelling of 938862161 in words is "nine hundred thirty-eight million, eight hundred sixty-two thousand, one hundred sixty-one".