655385743 has 4 divisors (see below), whose sum is σ = 657877968. Its totient is φ = 652893520.

The previous prime is 655385741. The next prime is 655385777. The reversal of 655385743 is 347583556.

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

It is a cyclic number.

It is not a de Polignac number, because 655385743 - 2¹ = 655385741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 655385693 and 655385702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655385741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1245718 + ... + 1246243.

It is an arithmetic number, because the mean of its divisors is an integer number (164469492).

Almost surely, 2^655385743 is an apocalyptic number.

655385743 is a deficient number, since it is larger than the sum of its proper divisors (2492225).

655385743 is a wasteful number, since it uses less digits than its factorization.

655385743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492224.

The product of its digits is 1512000, while the sum is 46.

The square root of 655385743 is about 25600.5027880313. The cubic root of 655385743 is about 868.6250104122.

The spelling of 655385743 in words is "six hundred fifty-five million, three hundred eighty-five thousand, seven hundred forty-three".