655343743 has 4 divisors (see below), whose sum is σ = 656542360. Its totient is φ = 654145128.

The previous prime is 655343707. The next prime is 655343753. The reversal of 655343743 is 347343556.

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 655343743 - 2²¹ = 653246591 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 655343696 and 655343705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655343753) 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, 598488 + ... + 599581.

It is an arithmetic number, because the mean of its divisors is an integer number (164135590).

Almost surely, 2^655343743 is an apocalyptic number.

655343743 is a deficient number, since it is larger than the sum of its proper divisors (1198617).

655343743 is a wasteful number, since it uses less digits than its factorization.

655343743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198616.

The product of its digits is 453600, while the sum is 40.

The square root of 655343743 is about 25599.6824784996. The cubic root of 655343743 is about 868.6064549126.

The spelling of 655343743 in words is "six hundred fifty-five million, three hundred forty-three thousand, seven hundred forty-three".