1039939 has 4 divisors (see below), whose sum is σ = 1049256. Its totient is φ = 1030624.

The previous prime is 1039931. The next prime is 1039943. The reversal of 1039939 is 9399301.

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: 9399301 = 191 ⋅49211.

It is a cyclic number.

It is not a de Polignac number, because 1039939 - 2³ = 1039931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1039931) 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 3 ways as a sum of consecutive naturals, for example, 4489 + ... + 4714.

It is an arithmetic number, because the mean of its divisors is an integer number (262314).

2^1039939 is an apocalyptic number.

1039939 is a deficient number, since it is larger than the sum of its proper divisors (9317).

1039939 is an equidigital number, since it uses as much as digits as its factorization.

1039939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9316.

The product of its (nonzero) digits is 6561, while the sum is 34.

The square root of 1039939 is about 1019.7739945694. The cubic root of 1039939 is about 101.3139594868.

The spelling of 1039939 in words is "one million, thirty-nine thousand, nine hundred thirty-nine".