3622522821 has 8 divisors (see below), whose sum is σ = 4830756384. Its totient is φ = 2414652240.

The previous prime is 3622522817. The next prime is 3622522823. The reversal of 3622522821 is 1282252263.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3622522821 - 2² = 3622522817 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3622522823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66535 + ... + 108036.

It is an arithmetic number, because the mean of its divisors is an integer number (603844548).

Almost surely, 2^3622522821 is an apocalyptic number.

It is an amenable number.

3622522821 is a deficient number, since it is larger than the sum of its proper divisors (1208233563).

3622522821 is a wasteful number, since it uses less digits than its factorization.

3622522821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181491.

The product of its digits is 23040, while the sum is 33.

The square root of 3622522821 is about 60187.3975263925. The cubic root of 3622522821 is about 1535.8084168433.

The spelling of 3622522821 in words is "three billion, six hundred twenty-two million, five hundred twenty-two thousand, eight hundred twenty-one".