3723649749 has 24 divisors (see below), whose sum is σ = 5402779200. Its totient is φ = 2471306112.

The previous prime is 3723649747. The next prime is 3723649819. The reversal of 3723649749 is 9479463273.

It is not a de Polignac number, because 3723649749 - 2¹ = 3723649747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3723649695 and 3723649704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3723649747) 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 23 ways as a sum of consecutive naturals, for example, 2660952 + ... + 2662350.

It is an arithmetic number, because the mean of its divisors is an integer number (225115800).

Almost surely, 2^3723649749 is an apocalyptic number.

It is an amenable number.

3723649749 is a deficient number, since it is larger than the sum of its proper divisors (1679129451).

3723649749 is a wasteful number, since it uses less digits than its factorization.

3723649749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2521 (or 2518 counting only the distinct ones).

The product of its digits is 6858432, while the sum is 54.

The square root of 3723649749 is about 61021.7153888679. The cubic root of 3723649749 is about 1549.9687470632.

The spelling of 3723649749 in words is "three billion, seven hundred twenty-three million, six hundred forty-nine thousand, seven hundred forty-nine".