1013939 has 4 divisors (see below), whose sum is σ = 1024080. Its totient is φ = 1003800.

The previous prime is 1013933. The next prime is 1013993. The reversal of 1013939 is 9393101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9393101 = 101 ⋅93001.

It is a cyclic number.

It is not a de Polignac number, because 1013939 - 2⁴ = 1013923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013933) 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, 4919 + ... + 5120.

It is an arithmetic number, because the mean of its divisors is an integer number (256020).

2^1013939 is an apocalyptic number.

1013939 is a deficient number, since it is larger than the sum of its proper divisors (10141).

1013939 is a wasteful number, since it uses less digits than its factorization.

1013939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10140.

The product of its (nonzero) digits is 729, while the sum is 26.

The square root of 1013939 is about 1006.9453808425. The cubic root of 1013939 is about 100.4624910560.

The spelling of 1013939 in words is "one million, thirteen thousand, nine hundred thirty-nine".