3478979820 has 24 divisors (see below), whose sum is σ = 9741143664. Its totient is φ = 927727936.

The previous prime is 3478979813. The next prime is 3478979863. The reversal of 3478979820 is 289798743.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 28991439 + ... + 28991558.

It is an arithmetic number, because the mean of its divisors is an integer number (405880986).

Almost surely, 2^3478979820 is an apocalyptic number.

3478979820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3478979820 is an abundant number, since it is smaller than the sum of its proper divisors (6262163844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3478979820 is a wasteful number, since it uses less digits than its factorization.

3478979820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57983009 (or 57983007 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 57.

The square root of 3478979820 is about 58982.8773458874. The cubic root of 3478979820 is about 1515.2488737089.

The spelling of 3478979820 in words is "three billion, four hundred seventy-eight million, nine hundred seventy-nine thousand, eight hundred twenty".