622485889 has 8 divisors (see below), whose sum is σ = 661841928. Its totient is φ = 583434240.

The previous prime is 622485883. The next prime is 622485947. The reversal of 622485889 is 988584226.

It can be written as a sum of positive squares in 4 ways, for example, as 119246400 + 503239489 = 10920^2 + 22433^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 622485889 - 2³ = 622485881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (622485881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71872 + ... + 80065.

It is an arithmetic number, because the mean of its divisors is an integer number (82730241).

Almost surely, 2^622485889 is an apocalyptic number.

It is an amenable number.

622485889 is a deficient number, since it is larger than the sum of its proper divisors (39356039).

622485889 is a wasteful number, since it uses less digits than its factorization.

622485889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152195.

The product of its digits is 2211840, while the sum is 52.

The square root of 622485889 is about 24949.6671120077. The cubic root of 622485889 is about 853.8400142181.

The spelling of 622485889 in words is "six hundred twenty-two million, four hundred eighty-five thousand, eight hundred eighty-nine".