4622908821 has 32 divisors (see below), whose sum is σ = 6969369600. Its totient is φ = 2710256640.

The previous prime is 4622908817. The next prime is 4622908837. The reversal of 4622908821 is 1288092264.

4622908821 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4622908821 - 2² = 4622908817 is a prime.

It is a super-2 number, since 2×4622908821² = 42742571934559220082, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4622908321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4566 + ... + 96263.

It is an arithmetic number, because the mean of its divisors is an integer number (217792800).

Almost surely, 2^4622908821 is an apocalyptic number.

It is an amenable number.

4622908821 is a deficient number, since it is larger than the sum of its proper divisors (2346460779).

4622908821 is a wasteful number, since it uses less digits than its factorization.

4622908821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100909.

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 4622908821 is about 67991.9761516019. The cubic root of 4622908821 is about 1665.8597790536.

The spelling of 4622908821 in words is "four billion, six hundred twenty-two million, nine hundred eight thousand, eight hundred twenty-one".