744691697 has 2 divisors, whose sum is σ = 744691698. Its totient is φ = 744691696.

The previous prime is 744691693. The next prime is 744691699. The reversal of 744691697 is 796196447.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 718722481 + 25969216 = 26809^2 + 5096^2 .

It is a cyclic number.

It is not a de Polignac number, because 744691697 - 2² = 744691693 is a prime.

Together with 744691699, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (744691691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372345848 + 372345849.

It is an arithmetic number, because the mean of its divisors is an integer number (372345849).

Almost surely, 2^744691697 is an apocalyptic number.

It is an amenable number.

744691697 is a deficient number, since it is larger than the sum of its proper divisors (1).

744691697 is an equidigital number, since it uses as much as digits as its factorization.

744691697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2286144, while the sum is 53.

The square root of 744691697 is about 27289.0398695154. The cubic root of 744691697 is about 906.4117023102.

The spelling of 744691697 in words is "seven hundred forty-four million, six hundred ninety-one thousand, six hundred ninety-seven".