1038679949 has 2 divisors, whose sum is σ = 1038679950. Its totient is φ = 1038679948.

The previous prime is 1038679933. The next prime is 1038679951. The reversal of 1038679949 is 9499768301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 656281924 + 382398025 = 25618^2 + 19555^2 .

It is a cyclic number.

It is not a de Polignac number, because 1038679949 - 2⁴ = 1038679933 is a prime.

It is a Sophie Germain prime.

Together with 1038679951, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1038679894 and 1038679903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1038679349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 519339974 + 519339975.

It is an arithmetic number, because the mean of its divisors is an integer number (519339975).

Almost surely, 2^1038679949 is an apocalyptic number.

It is an amenable number.

1038679949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1038679949 is an equidigital number, since it uses as much as digits as its factorization.

1038679949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 56.

The square root of 1038679949 is about 32228.5579727049. The cubic root of 1038679949 is about 1012.7305614042.

The spelling of 1038679949 in words is "one billion, thirty-eight million, six hundred seventy-nine thousand, nine hundred forty-nine".