736645648 has 20 divisors (see below), whose sum is σ = 1436707648. Its totient is φ = 365882400.

The previous prime is 736645643. The next prime is 736645687. The reversal of 736645648 is 846546637.

It is not an unprimeable number, because it can be changed into a prime (736645643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150036 + ... + 154867.

Almost surely, 2^736645648 is an apocalyptic number.

It is an amenable number.

736645648 is a deficient number, since it is larger than the sum of its proper divisors (700062000).

736645648 is a wasteful number, since it uses less digits than its factorization.

736645648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305062 (or 305056 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 49.

The square root of 736645648 is about 27141.2167744926. The cubic root of 736645648 is about 903.1354213314.

The spelling of 736645648 in words is "seven hundred thirty-six million, six hundred forty-five thousand, six hundred forty-eight".