738347261 has 2 divisors, whose sum is σ = 738347262. Its totient is φ = 738347260.

The previous prime is 738347249. The next prime is 738347263. The reversal of 738347261 is 162743837.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 691164100 + 47183161 = 26290^2 + 6869^2 .

It is a cyclic number.

It is not a de Polignac number, because 738347261 - 2²² = 734152957 is a prime.

It is a Sophie Germain prime.

Together with 738347263, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (738347263) 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 as a sum of consecutive naturals, namely, 369173630 + 369173631.

It is an arithmetic number, because the mean of its divisors is an integer number (369173631).

Almost surely, 2^738347261 is an apocalyptic number.

It is an amenable number.

738347261 is a deficient number, since it is larger than the sum of its proper divisors (1).

738347261 is an equidigital number, since it uses as much as digits as its factorization.

738347261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 41.

The square root of 738347261 is about 27172.5460897576. The cubic root of 738347261 is about 903.8302851351.

The spelling of 738347261 in words is "seven hundred thirty-eight million, three hundred forty-seven thousand, two hundred sixty-one".