1238939 has 6 divisors (see below), whose sum is σ = 1341756. Its totient is φ = 1143480.

The previous prime is 1238921. The next prime is 1238947. The reversal of 1238939 is 9398321.

It is not a de Polignac number, because 1238939 - 2⁸ = 1238683 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1238899 and 1238908.

It is not an unprimeable number, because it can be changed into a prime (1238989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3497 + ... + 3834.

It is an arithmetic number, because the mean of its divisors is an integer number (223626).

2^1238939 is an apocalyptic number.

1238939 is a deficient number, since it is larger than the sum of its proper divisors (102817).

1238939 is an equidigital number, since it uses as much as digits as its factorization.

1238939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7357 (or 7344 counting only the distinct ones).

The product of its digits is 11664, while the sum is 35.

The square root of 1238939 is about 1113.0763675508. The cubic root of 1238939 is about 107.4030566447.

The spelling of 1238939 in words is "one million, two hundred thirty-eight thousand, nine hundred thirty-nine".