3427239979 has 4 divisors (see below), whose sum is σ = 3510831240. Its totient is φ = 3343648720.

The previous prime is 3427239971. The next prime is 3427240057. The reversal of 3427239979 is 9799327243.

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: 9799327243 = 79 ⋅124042117.

It is a cyclic number.

It is not a de Polignac number, because 3427239979 - 2³ = 3427239971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3427239971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41795569 + ... + 41795650.

It is an arithmetic number, because the mean of its divisors is an integer number (877707810).

Almost surely, 2^3427239979 is an apocalyptic number.

3427239979 is a deficient number, since it is larger than the sum of its proper divisors (83591261).

3427239979 is an equidigital number, since it uses as much as digits as its factorization.

3427239979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83591260.

The product of its digits is 5143824, while the sum is 55.

The square root of 3427239979 is about 58542.6338577280. The cubic root of 3427239979 is about 1507.6996652920.

The spelling of 3427239979 in words is "three billion, four hundred twenty-seven million, two hundred thirty-nine thousand, nine hundred seventy-nine".