735376721 has 2 divisors, whose sum is σ = 735376722. Its totient is φ = 735376720.

The previous prime is 735376709. The next prime is 735376727. The reversal of 735376721 is 127673537.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 715027600 + 20349121 = 26740^2 + 4511^2 .

It is a cyclic number.

It is not a de Polignac number, because 735376721 - 2¹⁸ = 735114577 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (735376727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 367688360 + 367688361.

It is an arithmetic number, because the mean of its divisors is an integer number (367688361).

Almost surely, 2^735376721 is an apocalyptic number.

It is an amenable number.

735376721 is a deficient number, since it is larger than the sum of its proper divisors (1).

735376721 is an equidigital number, since it uses as much as digits as its factorization.

735376721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 185220, while the sum is 41.

The square root of 735376721 is about 27117.8303151266. The cubic root of 735376721 is about 902.6165506074.

The spelling of 735376721 in words is "seven hundred thirty-five million, three hundred seventy-six thousand, seven hundred twenty-one".