3213779808 has 48 divisors (see below), whose sum is σ = 8492828400. Its totient is φ = 1064065536.

The previous prime is 3213779743. The next prime is 3213779809. The reversal of 3213779808 is 8089773123.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213779809) 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 7 ways as a sum of consecutive naturals, for example, 98035 + ... + 126642.

It is an arithmetic number, because the mean of its divisors is an integer number (176933925).

Almost surely, 2^3213779808 is an apocalyptic number.

It is an amenable number.

3213779808 is an abundant number, since it is smaller than the sum of its proper divisors (5279048592).

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

3213779808 is a wasteful number, since it uses less digits than its factorization.

3213779808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224839 (or 224831 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 3213779808 is about 56690.2091017488. The cubic root of 3213779808 is about 1475.7247891344.

The spelling of 3213779808 in words is "three billion, two hundred thirteen million, seven hundred seventy-nine thousand, eight hundred eight".