338208647 has 8 divisors (see below), whose sum is σ = 386900352. Its totient is φ = 289611000.

The previous prime is 338208593. The next prime is 338208671. The reversal of 338208647 is 746802833.

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

It is not a de Polignac number, because 338208647 - 2¹² = 338204551 is a prime.

It is a super-2 number, since 2×338208647² = 228770177811141218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338208547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15629 + ... + 30342.

It is an arithmetic number, because the mean of its divisors is an integer number (48362544).

Almost surely, 2^338208647 is an apocalyptic number.

338208647 is a deficient number, since it is larger than the sum of its proper divisors (48691705).

338208647 is a wasteful number, since it uses less digits than its factorization.

338208647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47029.

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 338208647 is about 18390.4498857423. The cubic root of 338208647 is about 696.7252803819.

The spelling of 338208647 in words is "three hundred thirty-eight million, two hundred eight thousand, six hundred forty-seven".