3809640377 has 4 divisors (see below), whose sum is σ = 3810228816. Its totient is φ = 3809051940.

The previous prime is 3809640343. The next prime is 3809640379. The reversal of 3809640377 is 7730469083.

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 3809640377 - 2²⁴ = 3792863161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3809640379) 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 3 ways as a sum of consecutive naturals, for example, 284399 + ... + 297492.

It is an arithmetic number, because the mean of its divisors is an integer number (952557204).

Almost surely, 2^3809640377 is an apocalyptic number.

It is an amenable number.

3809640377 is a deficient number, since it is larger than the sum of its proper divisors (588439).

3809640377 is an equidigital number, since it uses as much as digits as its factorization.

3809640377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588438.

The product of its (nonzero) digits is 762048, while the sum is 47.

The square root of 3809640377 is about 61722.2842820970. The cubic root of 3809640377 is about 1561.8092608275.

The spelling of 3809640377 in words is "three billion, eight hundred nine million, six hundred forty thousand, three hundred seventy-seven".