4392061939 has 4 divisors (see below), whose sum is σ = 4392558256. Its totient is φ = 4391565624.

The previous prime is 4392061931. The next prime is 4392061997. The reversal of 4392061939 is 9391602934.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4392061939 - 2³ = 4392061931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4392061931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234639 + ... + 252664.

It is an arithmetic number, because the mean of its divisors is an integer number (1098139564).

Almost surely, 2^4392061939 is an apocalyptic number.

4392061939 is a deficient number, since it is larger than the sum of its proper divisors (496317).

4392061939 is an equidigital number, since it uses as much as digits as its factorization.

4392061939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496316.

The product of its (nonzero) digits is 314928, while the sum is 46.

The square root of 4392061939 is about 66272.6334092738. The cubic root of 4392061939 is about 1637.6565203919.

The spelling of 4392061939 in words is "four billion, three hundred ninety-two million, sixty-one thousand, nine hundred thirty-nine".