6397438298 has 4 divisors (see below), whose sum is σ = 9596157450. Its totient is φ = 3198719148.

The previous prime is 6397438279. The next prime is 6397438319. The reversal of 6397438298 is 8928347936.

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

It can be written as a sum of positive squares in only one way, i.e., 5960920849 + 436517449 = 77207^2 + 20893^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1599359573 + ... + 1599359576.

Almost surely, 2^6397438298 is an apocalyptic number.

6397438298 is a deficient number, since it is larger than the sum of its proper divisors (3198719152).

6397438298 is a wasteful number, since it uses less digits than its factorization.

6397438298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3198719151.

The product of its digits is 15676416, while the sum is 59.

The square root of 6397438298 is about 79983.9877600511. The cubic root of 6397438298 is about 1856.3877843995.

The spelling of 6397438298 in words is "six billion, three hundred ninety-seven million, four hundred thirty-eight thousand, two hundred ninety-eight".