743697693 has 10 divisors (see below), whose sum is σ = 1110955934. Its totient is φ = 495798408.

The previous prime is 743697673. The next prime is 743697701. The reversal of 743697693 is 396796347.

It can be written as a sum of positive squares in only one way, i.e., 378964089 + 364733604 = 19467^2 + 19098^2 .

It is not a de Polignac number, because 743697693 - 2¹⁸ = 743435549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (743697613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4590646 + ... + 4590807.

Almost surely, 2^743697693 is an apocalyptic number.

It is an amenable number.

743697693 is a deficient number, since it is larger than the sum of its proper divisors (367258241).

743697693 is an equidigital number, since it uses as much as digits as its factorization.

743697693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9181465 (or 9181456 counting only the distinct ones).

The product of its digits is 5143824, while the sum is 54.

The square root of 743697693 is about 27270.8212747618. The cubic root of 743697693 is about 906.0082342131.

The spelling of 743697693 in words is "seven hundred forty-three million, six hundred ninety-seven thousand, six hundred ninety-three".