622106681 has 8 divisors (see below), whose sum is σ = 711419904. Its totient is φ = 532903680.

The previous prime is 622106669. The next prime is 622106699. The reversal of 622106681 is 186601226.

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 622106681 - 2²² = 617912377 is a prime.

It is a super-2 number, since 2×622106681² = 774033445089671522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (622106651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15080 + ... + 38361.

It is an arithmetic number, because the mean of its divisors is an integer number (88927488).

Almost surely, 2^622106681 is an apocalyptic number.

It is an amenable number.

622106681 is a deficient number, since it is larger than the sum of its proper divisors (89313223).

622106681 is a wasteful number, since it uses less digits than its factorization.

622106681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55111.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 622106681 is about 24942.0664941781. The cubic root of 622106681 is about 853.6665973103. Note that the first 3 decimals are identical.

The spelling of 622106681 in words is "six hundred twenty-two million, one hundred six thousand, six hundred eighty-one".