3423821947 has 16 divisors (see below), whose sum is σ = 4461815232. Its totient is φ = 2549606400.

The previous prime is 3423821941. The next prime is 3423821953. The reversal of 3423821947 is 7491283243.

It is an interprime number because it is at equal distance from previous prime (3423821941) and next prime (3423821953).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3423821947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3423821941) 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, 1105054 + ... + 1108147.

It is an arithmetic number, because the mean of its divisors is an integer number (278863452).

Almost surely, 2^3423821947 is an apocalyptic number.

3423821947 is a deficient number, since it is larger than the sum of its proper divisors (1037993285).

3423821947 is a wasteful number, since it uses less digits than its factorization.

3423821947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2213238.

The product of its digits is 290304, while the sum is 43.

The square root of 3423821947 is about 58513.4339019682. The cubic root of 3423821947 is about 1507.1982822689.

The spelling of 3423821947 in words is "three billion, four hundred twenty-three million, eight hundred twenty-one thousand, nine hundred forty-seven".