655412761 has 8 divisors (see below), whose sum is σ = 693279360. Its totient is φ = 618327072.

The previous prime is 655412743. The next prime is 655412767. The reversal of 655412761 is 167214556.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 655412761 - 2⁹ = 655412249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 655412761.

It is not an unprimeable number, because it can be changed into a prime (655412767) 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 7 ways as a sum of consecutive naturals, for example, 193501 + ... + 196858.

It is an arithmetic number, because the mean of its divisors is an integer number (86659920).

Almost surely, 2^655412761 is an apocalyptic number.

It is an amenable number.

655412761 is a deficient number, since it is larger than the sum of its proper divisors (37866599).

655412761 is a wasteful number, since it uses less digits than its factorization.

655412761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390455.

The product of its digits is 50400, while the sum is 37.

The square root of 655412761 is about 25601.0304675417. The cubic root of 655412761 is about 868.6369464811.

The spelling of 655412761 in words is "six hundred fifty-five million, four hundred twelve thousand, seven hundred sixty-one".