734747661 has 12 divisors (see below), whose sum is σ = 1077143392. Its totient is φ = 482520456.

The previous prime is 734747659. The next prime is 734747669. The reversal of 734747661 is 166747437.

It is not a de Polignac number, because 734747661 - 2¹ = 734747659 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 (734747669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 608641 + ... + 609846.

Almost surely, 2^734747661 is an apocalyptic number.

It is an amenable number.

734747661 is a deficient number, since it is larger than the sum of its proper divisors (342395731).

734747661 is a wasteful number, since it uses less digits than its factorization.

734747661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218560 (or 1218557 counting only the distinct ones).

The product of its digits is 592704, while the sum is 45.

The square root of 734747661 is about 27106.2291918297. The cubic root of 734747661 is about 902.3591034462.

The spelling of 734747661 in words is "seven hundred thirty-four million, seven hundred forty-seven thousand, six hundred sixty-one".