653704745 has 4 divisors (see below), whose sum is σ = 784445700. Its totient is φ = 522963792.

The previous prime is 653704741. The next prime is 653704759. The reversal of 653704745 is 547407356.

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 130942249 + 522762496 = 11443^2 + 22864^2 .

It is a cyclic number.

It is not a de Polignac number, because 653704745 - 2² = 653704741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (653704741) 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, 65370470 + ... + 65370479.

It is an arithmetic number, because the mean of its divisors is an integer number (196111425).

Almost surely, 2^653704745 is an apocalyptic number.

It is an amenable number.

653704745 is a deficient number, since it is larger than the sum of its proper divisors (130740955).

653704745 is a wasteful number, since it uses less digits than its factorization.

653704745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130740954.

The product of its (nonzero) digits is 352800, while the sum is 41.

The square root of 653704745 is about 25567.6503613453. The cubic root of 653704745 is about 867.8817295339.

The spelling of 653704745 in words is "six hundred fifty-three million, seven hundred four thousand, seven hundred forty-five".