754758721 has 2 divisors, whose sum is σ = 754758722. Its totient is φ = 754758720.

The previous prime is 754758713. The next prime is 754758733. The reversal of 754758721 is 127857457.

754758721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 535274496 + 219484225 = 23136^2 + 14815^2 .

It is a cyclic number.

It is not a de Polignac number, because 754758721 - 2³ = 754758713 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (754758821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 377379360 + 377379361.

It is an arithmetic number, because the mean of its divisors is an integer number (377379361).

Almost surely, 2^754758721 is an apocalyptic number.

It is an amenable number.

754758721 is a deficient number, since it is larger than the sum of its proper divisors (1).

754758721 is an equidigital number, since it uses as much as digits as its factorization.

754758721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 548800, while the sum is 46.

The square root of 754758721 is about 27472.8724562977. The cubic root of 754758721 is about 910.4778398533.

The spelling of 754758721 in words is "seven hundred fifty-four million, seven hundred fifty-eight thousand, seven hundred twenty-one".