735668261 has 2 divisors, whose sum is σ = 735668262. Its totient is φ = 735668260.

The previous prime is 735668237. The next prime is 735668267. The reversal of 735668261 is 162866537.

735668261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 730350625 + 5317636 = 27025^2 + 2306^2 .

It is a cyclic number.

It is not a de Polignac number, because 735668261 - 2¹⁰ = 735667237 is a prime.

It is a Sophie Germain 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 (735668267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 367834130 + 367834131.

It is an arithmetic number, because the mean of its divisors is an integer number (367834131).

Almost surely, 2^735668261 is an apocalyptic number.

It is an amenable number.

735668261 is a deficient number, since it is larger than the sum of its proper divisors (1).

735668261 is an equidigital number, since it uses as much as digits as its factorization.

735668261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 44.

The square root of 735668261 is about 27123.2052125113. The cubic root of 735668261 is about 902.7358155838.

The spelling of 735668261 in words is "seven hundred thirty-five million, six hundred sixty-eight thousand, two hundred sixty-one".