745641697 has 2 divisors, whose sum is σ = 745641698. Its totient is φ = 745641696.

The previous prime is 745641671. The next prime is 745641713. The reversal of 745641697 is 796146547.

745641697 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., 743980176 + 1661521 = 27276^2 + 1289^2 .

It is a cyclic number.

It is not a de Polignac number, because 745641697 - 2⁷ = 745641569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 745641697.

It is not a weakly prime, because it can be changed into another prime (745641497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372820848 + 372820849.

It is an arithmetic number, because the mean of its divisors is an integer number (372820849).

Almost surely, 2^745641697 is an apocalyptic number.

It is an amenable number.

745641697 is a deficient number, since it is larger than the sum of its proper divisors (1).

745641697 is an equidigital number, since it uses as much as digits as its factorization.

745641697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 49.

The square root of 745641697 is about 27306.4405772704. The cubic root of 745641697 is about 906.7969736990.

The spelling of 745641697 in words is "seven hundred forty-five million, six hundred forty-one thousand, six hundred ninety-seven".