3720989349 has 48 divisors (see below), whose sum is σ = 6785925120. Its totient is φ = 1908485280.

The previous prime is 3720989287. The next prime is 3720989401. The reversal of 3720989349 is 9439890273.

It is not a de Polignac number, because 3720989349 - 2¹¹ = 3720987301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3720989295 and 3720989304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3720981349) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20764 + ... + 88730.

It is an arithmetic number, because the mean of its divisors is an integer number (141373440).

Almost surely, 2^3720989349 is an apocalyptic number.

It is an amenable number.

3720989349 is a deficient number, since it is larger than the sum of its proper divisors (3064935771).

3720989349 is a wasteful number, since it uses less digits than its factorization.

3720989349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68070 (or 68067 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The square root of 3720989349 is about 60999.9126966588. The cubic root of 3720989349 is about 1549.5995287284.

The spelling of 3720989349 in words is "three billion, seven hundred twenty million, nine hundred eighty-nine thousand, three hundred forty-nine".