3828699309 has 4 divisors (see below), whose sum is σ = 5104932416. Its totient is φ = 2552466204.

The previous prime is 3828699293. The next prime is 3828699341. The reversal of 3828699309 is 9039968283.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9039968283 = 3 ⋅3013322761.

It is not a de Polignac number, because 3828699309 - 2⁴ = 3828699293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3828699349) 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, 638116549 + ... + 638116554.

It is an arithmetic number, because the mean of its divisors is an integer number (1276233104).

Almost surely, 2^3828699309 is an apocalyptic number.

It is an amenable number.

3828699309 is a deficient number, since it is larger than the sum of its proper divisors (1276233107).

3828699309 is a wasteful number, since it uses less digits than its factorization.

3828699309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276233106.

The product of its (nonzero) digits is 5038848, while the sum is 57.

The square root of 3828699309 is about 61876.4842973484. The cubic root of 3828699309 is about 1564.4094113599.

The spelling of 3828699309 in words is "three billion, eight hundred twenty-eight million, six hundred ninety-nine thousand, three hundred nine".