4107923621 has 2 divisors, whose sum is σ = 4107923622. Its totient is φ = 4107923620.

The previous prime is 4107923597. The next prime is 4107923627. The reversal of 4107923621 is 1263297014.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3913878721 + 194044900 = 62561^2 + 13930^2 .

It is a cyclic number.

It is not a de Polignac number, because 4107923621 - 2³⁰ = 3034181797 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4107923627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2053961810 + 2053961811.

It is an arithmetic number, because the mean of its divisors is an integer number (2053961811).

Almost surely, 2^4107923621 is an apocalyptic number.

It is an amenable number.

4107923621 is a deficient number, since it is larger than the sum of its proper divisors (1).

4107923621 is an equidigital number, since it uses as much as digits as its factorization.

4107923621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 4107923621 is about 64093.0855943135. The cubic root of 4107923621 is about 1601.5510507329.

The spelling of 4107923621 in words is "four billion, one hundred seven million, nine hundred twenty-three thousand, six hundred twenty-one".