3829437649 has 4 divisors (see below), whose sum is σ = 3875575536. Its totient is φ = 3783299764.

The previous prime is 3829437641. The next prime is 3829437691. The reversal of 3829437649 is 9467349283.

It is a happy number.

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 3829437649 - 2³ = 3829437641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3829437649.

It is not an unprimeable number, because it can be changed into a prime (3829437641) 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, 23068819 + ... + 23068984.

It is an arithmetic number, because the mean of its divisors is an integer number (968893884).

Almost surely, 2^3829437649 is an apocalyptic number.

It is an amenable number.

3829437649 is a deficient number, since it is larger than the sum of its proper divisors (46137887).

3829437649 is an equidigital number, since it uses as much as digits as its factorization.

3829437649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46137886.

The product of its digits is 7838208, while the sum is 55.

The square root of 3829437649 is about 61882.4502504547. The cubic root of 3829437649 is about 1564.5099669891.

The spelling of 3829437649 in words is "three billion, eight hundred twenty-nine million, four hundred thirty-seven thousand, six hundred forty-nine".