4942939 has 4 divisors (see below), whose sum is σ = 5036256. Its totient is φ = 4849624.

The previous prime is 4942933. The next prime is 4942957. The reversal of 4942939 is 9392494.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9392494 = 2 ⋅4696247.

It is a cyclic number.

It is not a de Polignac number, because 4942939 - 2⁷ = 4942811 is a prime.

It is a Duffinian number.

4942939 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4942933) 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, 46579 + ... + 46684.

It is an arithmetic number, because the mean of its divisors is an integer number (1259064).

Almost surely, 2^4942939 is an apocalyptic number.

4942939 is a deficient number, since it is larger than the sum of its proper divisors (93317).

4942939 is an equidigital number, since it uses as much as digits as its factorization.

4942939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93316.

The product of its digits is 69984, while the sum is 40.

The square root of 4942939 is about 2223.2721380884. The cubic root of 4942939 is about 170.3446181157.

The spelling of 4942939 in words is "four million, nine hundred forty-two thousand, nine hundred thirty-nine".