6398387547 has 8 divisors (see below), whose sum is σ = 8540551680. Its totient is φ = 4260907560.

The previous prime is 6398387521. The next prime is 6398387557. The reversal of 6398387547 is 7457838936.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6398387547 - 2⁷ = 6398387419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6398387557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1167847 + ... + 1173312.

It is an arithmetic number, because the mean of its divisors is an integer number (1067568960).

Almost surely, 2^6398387547 is an apocalyptic number.

6398387547 is a deficient number, since it is larger than the sum of its proper divisors (2142164133).

6398387547 is a wasteful number, since it uses less digits than its factorization.

6398387547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2342073.

The product of its digits is 30481920, while the sum is 60.

The square root of 6398387547 is about 79989.9215339033. The cubic root of 6398387547 is about 1856.4795965185.

The spelling of 6398387547 in words is "six billion, three hundred ninety-eight million, three hundred eighty-seven thousand, five hundred forty-seven".