338477849 has 2 divisors, whose sum is σ = 338477850. Its totient is φ = 338477848.

The previous prime is 338477831. The next prime is 338477851. The reversal of 338477849 is 948774833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 320159449 + 18318400 = 17893^2 + 4280^2 .

It is a cyclic number.

It is not a de Polignac number, because 338477849 - 2¹² = 338473753 is a prime.

It is a super-3 number, since 3×338477849³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 338477851, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 338477849.

It is not a weakly prime, because it can be changed into another prime (338477869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169238924 + 169238925.

It is an arithmetic number, because the mean of its divisors is an integer number (169238925).

Almost surely, 2^338477849 is an apocalyptic number.

It is an amenable number.

338477849 is a deficient number, since it is larger than the sum of its proper divisors (1).

338477849 is an equidigital number, since it uses as much as digits as its factorization.

338477849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4064256, while the sum is 53.

The square root of 338477849 is about 18397.7675004333. The cubic root of 338477849 is about 696.9100875012.

The spelling of 338477849 in words is "three hundred thirty-eight million, four hundred seventy-seven thousand, eight hundred forty-nine".