622101809 has 8 divisors (see below), whose sum is σ = 712127040. Its totient is φ = 532364976.

The previous prime is 622101751. The next prime is 622101817. The reversal of 622101809 is 908101226.

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 622101809 - 2¹² = 622097713 is a prime.

It is a super-2 number, since 2×622101809² = 774021321522144962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (622101889) 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, 67454 + ... + 76119.

It is an arithmetic number, because the mean of its divisors is an integer number (89015880).

Almost surely, 2^622101809 is an apocalyptic number.

It is an amenable number.

622101809 is a deficient number, since it is larger than the sum of its proper divisors (90025231).

622101809 is a wasteful number, since it uses less digits than its factorization.

622101809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144199.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 622101809 is about 24941.9688276607. The cubic root of 622101809 is about 853.6643688209.

The spelling of 622101809 in words is "six hundred twenty-two million, one hundred one thousand, eight hundred nine".