3671220972 has 18 divisors (see below), whose sum is σ = 8566672044. Its totient is φ = 1223670360.

The previous prime is 3671220967. The next prime is 3671220979. The reversal of 3671220972 is 2790221763.

It is a self number, because there is not a number n which added to its sum of digits gives 3671220972.

It is not an unprimeable number, because it can be changed into a prime (3671220979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 201147 + ... + 218637.

Almost surely, 2^3671220972 is an apocalyptic number.

It is an amenable number.

3671220972 is an abundant number, since it is smaller than the sum of its proper divisors (4895451072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3671220972 is an frugal number, since it uses more digits than its factorization.

3671220972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34989 (or 17496 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 3671220972 is about 60590.6013503745. The cubic root of 3671220972 is about 1542.6598453521.

The spelling of 3671220972 in words is "three billion, six hundred seventy-one million, two hundred twenty thousand, nine hundred seventy-two".