655922077 has 4 divisors (see below), whose sum is σ = 659356416. Its totient is φ = 652487740.

The previous prime is 655922063. The next prime is 655922131. The reversal of 655922077 is 770229556.

655922077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 655922077 - 2⁷ = 655921949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655922017) 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, 1716883 + ... + 1717264.

It is an arithmetic number, because the mean of its divisors is an integer number (164839104).

Almost surely, 2^655922077 is an apocalyptic number.

It is an amenable number.

655922077 is a deficient number, since it is larger than the sum of its proper divisors (3434339).

655922077 is a wasteful number, since it uses less digits than its factorization.

655922077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3434338.

The product of its (nonzero) digits is 264600, while the sum is 43.

The square root of 655922077 is about 25610.9757135491. The cubic root of 655922077 is about 868.8618918249.

The spelling of 655922077 in words is "six hundred fifty-five million, nine hundred twenty-two thousand, seventy-seven".