4293939 has 16 divisors (see below), whose sum is σ = 6435072. Its totient is φ = 2527008.

The previous prime is 4293931. The next prime is 4293941. The reversal of 4293939 is 9393924.

It is not a de Polignac number, because 4293939 - 2³ = 4293931 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an Ulam number.

4293939 is a modest number, since divided by 3939 gives 429 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 4293897 and 4293906.

It is not an unprimeable number, because it can be changed into a prime (4293931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1497 + ... + 3290.

It is an arithmetic number, because the mean of its divisors is an integer number (402192).

Almost surely, 2^4293939 is an apocalyptic number.

4293939 is a deficient number, since it is larger than the sum of its proper divisors (2141133).

4293939 is a wasteful number, since it uses less digits than its factorization.

4293939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4826.

The product of its digits is 52488, while the sum is 39.

The square root of 4293939 is about 2072.1821831104. The cubic root of 4293939 is about 162.5368941870.

The spelling of 4293939 in words is "four million, two hundred ninety-three thousand, nine hundred thirty-nine".