3809955837 has 4 divisors (see below), whose sum is σ = 5079941120. Its totient is φ = 2539970556.

The previous prime is 3809955797. The next prime is 3809955839. The reversal of 3809955837 is 7385599083.

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 not a de Polignac number, because 3809955837 - 2¹⁵ = 3809923069 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 (3809955839) 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, 634992637 + ... + 634992642.

It is an arithmetic number, because the mean of its divisors is an integer number (1269985280).

Almost surely, 2^3809955837 is an apocalyptic number.

It is an amenable number.

3809955837 is a deficient number, since it is larger than the sum of its proper divisors (1269985283).

3809955837 is a wasteful number, since it uses less digits than its factorization.

3809955837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269985282.

The product of its (nonzero) digits is 8164800, while the sum is 57.

The square root of 3809955837 is about 61724.8397081758. The cubic root of 3809955837 is about 1561.8523685492.

The spelling of 3809955837 in words is "three billion, eight hundred nine million, nine hundred fifty-five thousand, eight hundred thirty-seven".