3478979813 has 2 divisors, whose sum is σ = 3478979814. Its totient is φ = 3478979812.

The previous prime is 3478979789. The next prime is 3478979863. The reversal of 3478979813 is 3189798743.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2974393444 + 504586369 = 54538^2 + 22463^2 .

It is a cyclic number.

It is not a de Polignac number, because 3478979813 - 2¹⁴ = 3478963429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3478979863) 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 as a sum of consecutive naturals, namely, 1739489906 + 1739489907.

It is an arithmetic number, because the mean of its divisors is an integer number (1739489907).

Almost surely, 2^3478979813 is an apocalyptic number.

It is an amenable number.

3478979813 is a deficient number, since it is larger than the sum of its proper divisors (1).

3478979813 is an equidigital number, since it uses as much as digits as its factorization.

3478979813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9144576, while the sum is 59.

The square root of 3478979813 is about 58982.8772865482. The cubic root of 3478979813 is about 1515.2488726927.

The spelling of 3478979813 in words is "three billion, four hundred seventy-eight million, nine hundred seventy-nine thousand, eight hundred thirteen".