3213757636 has 12 divisors (see below), whose sum is σ = 5636122128. Its totient is φ = 1603437032.

The previous prime is 3213757619. The next prime is 3213757637. The reversal of 3213757636 is 6367573123.

3213757636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3213757592 and 3213757601.

It is not an unprimeable number, because it can be changed into a prime (3213757637) 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, 858346 + ... + 862081.

It is an arithmetic number, because the mean of its divisors is an integer number (469676844).

Almost surely, 2^3213757636 is an apocalyptic number.

It is an amenable number.

3213757636 is a deficient number, since it is larger than the sum of its proper divisors (2422364492).

3213757636 is a wasteful number, since it uses less digits than its factorization.

3213757636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720898 (or 1720896 counting only the distinct ones).

The product of its digits is 476280, while the sum is 43.

The square root of 3213757636 is about 56690.0135473612. The cubic root of 3213757636 is about 1475.7213954311.

The spelling of 3213757636 in words is "three billion, two hundred thirteen million, seven hundred fifty-seven thousand, six hundred thirty-six".