1938961 has 4 divisors (see below), whose sum is σ = 1953252. Its totient is φ = 1924672.

The previous prime is 1938949. The next prime is 1938971. The reversal of 1938961 is 1698391.

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 938961 + 1000000 = 969^2 + 1000^2 .

It is a cyclic number.

It is not a de Polignac number, because 1938961 - 2⁹ = 1938449 is a prime.

It is a Duffinian number.

1938961 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1938961.

It is not an unprimeable number, because it can be changed into a prime (1938971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6940 + ... + 7213.

It is an arithmetic number, because the mean of its divisors is an integer number (488313).

2^1938961 is an apocalyptic number.

It is an amenable number.

1938961 is a deficient number, since it is larger than the sum of its proper divisors (14291).

1938961 is a wasteful number, since it uses less digits than its factorization.

1938961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14290.

The product of its digits is 11664, while the sum is 37.

The square root of 1938961 is about 1392.4657985028. The cubic root of 1938961 is about 124.6971012784.

The spelling of 1938961 in words is "one million, nine hundred thirty-eight thousand, nine hundred sixty-one".