622386977 has 4 divisors (see below), whose sum is σ = 630912900. Its totient is φ = 613861056.

The previous prime is 622386967. The next prime is 622387069. The reversal of 622386977 is 779683226.

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

It can be written as a sum of positive squares in 2 ways, for example, as 382632721 + 239754256 = 19561^2 + 15484^2 .

It is a cyclic number.

It is not a de Polignac number, because 622386977 - 2²⁰ = 621338401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (622386917) 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, 4262852 + ... + 4262997.

It is an arithmetic number, because the mean of its divisors is an integer number (157728225).

Almost surely, 2^622386977 is an apocalyptic number.

It is an amenable number.

622386977 is a deficient number, since it is larger than the sum of its proper divisors (8525923).

622386977 is an equidigital number, since it uses as much as digits as its factorization.

622386977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8525922.

The product of its digits is 1524096, while the sum is 50.

The square root of 622386977 is about 24947.6848024020. The cubic root of 622386977 is about 853.7947872239.

The spelling of 622386977 in words is "six hundred twenty-two million, three hundred eighty-six thousand, nine hundred seventy-seven".