6339770387 has 4 divisors (see below), whose sum is σ = 6342439896. Its totient is φ = 6337100880.

The previous prime is 6339770323. The next prime is 6339770389. The reversal of 6339770387 is 7830779336.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6339770387 - 2⁶ = 6339770323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6339770389) 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, 1331189 + ... + 1335942.

It is an arithmetic number, because the mean of its divisors is an integer number (1585609974).

Almost surely, 2^6339770387 is an apocalyptic number.

6339770387 is a deficient number, since it is larger than the sum of its proper divisors (2669509).

6339770387 is a wasteful number, since it uses less digits than its factorization.

6339770387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2669508.

The product of its (nonzero) digits is 4000752, while the sum is 53.

The square root of 6339770387 is about 79622.6750806578. The cubic root of 6339770387 is about 1850.7929775103.

The spelling of 6339770387 in words is "six billion, three hundred thirty-nine million, seven hundred seventy thousand, three hundred eighty-seven".