622077561 has 12 divisors (see below), whose sum is σ = 1026921792. Its totient is φ = 355472856.

The previous prime is 622077553. The next prime is 622077581. The reversal of 622077561 is 165770226.

622077561 is a `hidden beast` number, since 6 + 2 + 20 + 77 + 561 = 666.

It is not a de Polignac number, because 622077561 - 2³ = 622077553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (622077541) 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 11 ways as a sum of consecutive naturals, for example, 4937061 + ... + 4937186.

It is an arithmetic number, because the mean of its divisors is an integer number (85576816).

Almost surely, 2^622077561 is an apocalyptic number.

It is an amenable number.

622077561 is a deficient number, since it is larger than the sum of its proper divisors (404844231).

622077561 is a wasteful number, since it uses less digits than its factorization.

622077561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9874260 (or 9874257 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 622077561 is about 24941.4827345930. The cubic root of 622077561 is about 853.6532774302.

The spelling of 622077561 in words is "six hundred twenty-two million, seventy-seven thousand, five hundred sixty-one".