3213850636 has 48 divisors (see below), whose sum is σ = 5943057120. Its totient is φ = 1518981120.

The previous prime is 3213850621. The next prime is 3213850637. The reversal of 3213850636 is 6360583123.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 3213850595 and 3213850604.

It is not an unprimeable number, because it can be changed into a prime (3213850637) 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, 747180 + ... + 751468.

It is an arithmetic number, because the mean of its divisors is an integer number (123813690).

Almost surely, 2^3213850636 is an apocalyptic number.

It is an amenable number.

3213850636 is a deficient number, since it is larger than the sum of its proper divisors (2729206484).

3213850636 is a wasteful number, since it uses less digits than its factorization.

3213850636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4474 (or 4472 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 3213850636 is about 56690.8337917163. The cubic root of 3213850636 is about 1475.7356301455.

The spelling of 3213850636 in words is "three billion, two hundred thirteen million, eight hundred fifty thousand, six hundred thirty-six".