655740867 has 4 divisors (see below), whose sum is σ = 874321160. Its totient is φ = 437160576.

The previous prime is 655740803. The next prime is 655740871. The reversal of 655740867 is 768047556.

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

It is not a de Polignac number, because 655740867 - 2⁶ = 655740803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655748867) 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, 109290142 + ... + 109290147.

It is an arithmetic number, because the mean of its divisors is an integer number (218580290).

Almost surely, 2^655740867 is an apocalyptic number.

655740867 is a deficient number, since it is larger than the sum of its proper divisors (218580293).

655740867 is a wasteful number, since it uses less digits than its factorization.

655740867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218580292.

The product of its (nonzero) digits is 1411200, while the sum is 48.

The square root of 655740867 is about 25607.4377281289. The cubic root of 655740867 is about 868.7818716668.

The spelling of 655740867 in words is "six hundred fifty-five million, seven hundred forty thousand, eight hundred sixty-seven".