1622105989 has 8 divisors (see below), whose sum is σ = 1854357440. Its totient is φ = 1389985056.

The previous prime is 1622105963. The next prime is 1622106007. The reversal of 1622105989 is 9895012261.

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 1622105989 - 2⁹ = 1622105477 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 (1622105389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4359 + ... + 57124.

It is an arithmetic number, because the mean of its divisors is an integer number (231794680).

Almost surely, 2^1622105989 is an apocalyptic number.

It is an amenable number.

1622105989 is a deficient number, since it is larger than the sum of its proper divisors (232251451).

1622105989 is an equidigital number, since it uses as much as digits as its factorization.

1622105989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65259.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 1622105989 is about 40275.3769566468. The cubic root of 1622105989 is about 1174.9690021097.

The spelling of 1622105989 in words is "one billion, six hundred twenty-two million, one hundred five thousand, nine hundred eighty-nine".