3873529649 has 4 divisors (see below), whose sum is σ = 4225668720. Its totient is φ = 3521390580.

The previous prime is 3873529637. The next prime is 3873529651. The reversal of 3873529649 is 9469253783.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3873529649 - 2⁴ = 3873529633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3873529594 and 3873529603.

It is not an unprimeable number, because it can be changed into a prime (3873529609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176069519 + ... + 176069540.

It is an arithmetic number, because the mean of its divisors is an integer number (1056417180).

Almost surely, 2^3873529649 is an apocalyptic number.

It is an amenable number.

3873529649 is a deficient number, since it is larger than the sum of its proper divisors (352139071).

3873529649 is a wasteful number, since it uses less digits than its factorization.

3873529649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352139070.

The product of its digits is 9797760, while the sum is 56.

The square root of 3873529649 is about 62237.6867259701. The cubic root of 3873529649 is about 1570.4916373132.

The spelling of 3873529649 in words is "three billion, eight hundred seventy-three million, five hundred twenty-nine thousand, six hundred forty-nine".