655723763 has 4 divisors (see below), whose sum is σ = 690235560. Its totient is φ = 621211968.

The previous prime is 655723753. The next prime is 655723769. The reversal of 655723763 is 367327556.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-655723763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655723769) 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, 17255870 + ... + 17255907.

It is an arithmetic number, because the mean of its divisors is an integer number (172558890).

Almost surely, 2^655723763 is an apocalyptic number.

655723763 is a deficient number, since it is larger than the sum of its proper divisors (34511797).

655723763 is a wasteful number, since it uses less digits than its factorization.

655723763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34511796.

The product of its digits is 793800, while the sum is 44.

The square root of 655723763 is about 25607.1037604802. The cubic root of 655723763 is about 868.7743179846.

The spelling of 655723763 in words is "six hundred fifty-five million, seven hundred twenty-three thousand, seven hundred sixty-three".