622061641 has 4 divisors (see below), whose sum is σ = 622284052. Its totient is φ = 621839232.

The previous prime is 622061633. The next prime is 622061647. The reversal of 622061641 is 146160226.

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 407878416 + 214183225 = 20196^2 + 14635^2 .

It is a cyclic number.

It is not a de Polignac number, because 622061641 - 2³ = 622061633 is a prime.

It is a super-2 number, since 2×622061641² = 773921370407225762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (622061647) 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 3 ways as a sum of consecutive naturals, for example, 106956 + ... + 112621.

It is an arithmetic number, because the mean of its divisors is an integer number (155571013).

Almost surely, 2^622061641 is an apocalyptic number.

It is an amenable number.

622061641 is a deficient number, since it is larger than the sum of its proper divisors (222411).

622061641 is a wasteful number, since it uses less digits than its factorization.

622061641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222410.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 622061641 is about 24941.1635855266. The cubic root of 622061641 is about 853.6459952321.

The spelling of 622061641 in words is "six hundred twenty-two million, sixty-one thousand, six hundred forty-one".