4408795621 has 4 divisors (see below), whose sum is σ = 4409064000. Its totient is φ = 4408527244.

The previous prime is 4408795613. The next prime is 4408795637. The reversal of 4408795621 is 1265978044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4408795621 - 2³ = 4408795613 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 (4408795021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107821 + ... + 142978.

It is an arithmetic number, because the mean of its divisors is an integer number (1102266000).

Almost surely, 2^4408795621 is an apocalyptic number.

It is an amenable number.

4408795621 is a deficient number, since it is larger than the sum of its proper divisors (268379).

4408795621 is a wasteful number, since it uses less digits than its factorization.

4408795621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268378.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 4408795621 is about 66398.7621947879. The cubic root of 4408795621 is about 1639.7336992008.

The spelling of 4408795621 in words is "four billion, four hundred eight million, seven hundred ninety-five thousand, six hundred twenty-one".