707721601 has 2 divisors, whose sum is σ = 707721602. Its totient is φ = 707721600.

The previous prime is 707721559. The next prime is 707721643. The reversal of 707721601 is 106127707.

707721601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (707721559) and next prime (707721643).

It can be written as a sum of positive squares in only one way, i.e., 654080625 + 53640976 = 25575^2 + 7324^2 .

It is a cyclic number.

It is not a de Polignac number, because 707721601 - 2⁷ = 707721473 is a prime.

It is not a weakly prime, because it can be changed into another prime (707721401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353860800 + 353860801.

It is an arithmetic number, because the mean of its divisors is an integer number (353860801).

Almost surely, 2^707721601 is an apocalyptic number.

It is an amenable number.

707721601 is a deficient number, since it is larger than the sum of its proper divisors (1).

707721601 is an equidigital number, since it uses as much as digits as its factorization.

707721601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4116, while the sum is 31.

The square root of 707721601 is about 26603.0374393602. The cubic root of 707721601 is about 891.1568514819.

The spelling of 707721601 in words is "seven hundred seven million, seven hundred twenty-one thousand, six hundred one".