1338038747 has 2 divisors, whose sum is σ = 1338038748. Its totient is φ = 1338038746.

The previous prime is 1338038719. The next prime is 1338038753. The reversal of 1338038747 is 7478308331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1338038747 - 2¹⁴ = 1338022363 is a prime.

It is a super-3 number, since 3×1338038747³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1338038698 and 1338038707.

It is not a weakly prime, because it can be changed into another prime (1338038717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669019373 + 669019374.

It is an arithmetic number, because the mean of its divisors is an integer number (669019374).

Almost surely, 2^1338038747 is an apocalyptic number.

1338038747 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338038747 is an equidigital number, since it uses as much as digits as its factorization.

1338038747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 1338038747 is about 36579.2119515990. The cubic root of 1338038747 is about 1101.9356406672.

The spelling of 1338038747 in words is "one billion, three hundred thirty-eight million, thirty-eight thousand, seven hundred forty-seven".