736354721 has 2 divisors, whose sum is σ = 736354722. Its totient is φ = 736354720.

The previous prime is 736354699. The next prime is 736354753. The reversal of 736354721 is 127453637.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 613255696 + 123099025 = 24764^2 + 11095^2 .

It is a cyclic number.

It is not a de Polignac number, because 736354721 - 2⁶ = 736354657 is a prime.

It is not a weakly prime, because it can be changed into another prime (736359721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 368177360 + 368177361.

It is an arithmetic number, because the mean of its divisors is an integer number (368177361).

Almost surely, 2^736354721 is an apocalyptic number.

It is an amenable number.

736354721 is a deficient number, since it is larger than the sum of its proper divisors (1).

736354721 is an equidigital number, since it uses as much as digits as its factorization.

736354721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 38.

The square root of 736354721 is about 27135.8567397457. The cubic root of 736354721 is about 903.0165124747.

The spelling of 736354721 in words is "seven hundred thirty-six million, three hundred fifty-four thousand, seven hundred twenty-one".