3619221806 has 8 divisors (see below), whose sum is σ = 5494240584. Its totient is φ = 1787808280.

The previous prime is 3619221803. The next prime is 3619221841. The reversal of 3619221806 is 6081229163.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 3619221806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3619221803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10901105 + ... + 10901436.

It is an arithmetic number, because the mean of its divisors is an integer number (686780073).

Almost surely, 2^3619221806 is an apocalyptic number.

3619221806 is a deficient number, since it is larger than the sum of its proper divisors (1875018778).

3619221806 is a wasteful number, since it uses less digits than its factorization.

3619221806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21802626.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 3619221806 is about 60159.9684674119. The cubic root of 3619221806 is about 1535.3417745265.

The spelling of 3619221806 in words is "three billion, six hundred nineteen million, two hundred twenty-one thousand, eight hundred six".