3722274643 has 4 divisors (see below), whose sum is σ = 3737720008. Its totient is φ = 3706829280.

The previous prime is 3722274631. The next prime is 3722274691. The reversal of 3722274643 is 3464722273.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3722274643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3722274596 and 3722274605.

It is not an unprimeable number, because it can be changed into a prime (3722278643) 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, 7722321 + ... + 7722802.

It is an arithmetic number, because the mean of its divisors is an integer number (934430002).

Almost surely, 2^3722274643 is an apocalyptic number.

3722274643 is a deficient number, since it is larger than the sum of its proper divisors (15445365).

3722274643 is a wasteful number, since it uses less digits than its factorization.

3722274643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15445364.

The product of its digits is 338688, while the sum is 40.

The square root of 3722274643 is about 61010.4469988542. The cubic root of 3722274643 is about 1549.7779276713. Note that the first 3 decimals are identical.

The spelling of 3722274643 in words is "three billion, seven hundred twenty-two million, two hundred seventy-four thousand, six hundred forty-three".