736464661 has 4 divisors (see below), whose sum is σ = 746553292. Its totient is φ = 726376032.

The previous prime is 736464653. The next prime is 736464689. The reversal of 736464661 is 166464637.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 227104900 + 509359761 = 15070^2 + 22569^2 .

It is a cyclic number.

It is not a de Polignac number, because 736464661 - 2³ = 736464653 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 (736464601) 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 3 ways as a sum of consecutive naturals, for example, 5044206 + ... + 5044351.

It is an arithmetic number, because the mean of its divisors is an integer number (186638323).

Almost surely, 2^736464661 is an apocalyptic number.

It is an amenable number.

736464661 is a deficient number, since it is larger than the sum of its proper divisors (10088631).

736464661 is a wasteful number, since it uses less digits than its factorization.

736464661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10088630.

The product of its digits is 435456, while the sum is 43.

The square root of 736464661 is about 27137.8823971216. The cubic root of 736464661 is about 903.0614512757.

The spelling of 736464661 in words is "seven hundred thirty-six million, four hundred sixty-four thousand, six hundred sixty-one".