4923706621 has 2 divisors, whose sum is σ = 4923706622. Its totient is φ = 4923706620.

The previous prime is 4923706603. The next prime is 4923706633. The reversal of 4923706621 is 1266073294.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3204692100 + 1719014521 = 56610^2 + 41461^2 .

It is a cyclic number.

It is not a de Polignac number, because 4923706621 - 2¹¹ = 4923704573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4923706121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2461853310 + 2461853311.

It is an arithmetic number, because the mean of its divisors is an integer number (2461853311).

Almost surely, 2^4923706621 is an apocalyptic number.

It is an amenable number.

4923706621 is a deficient number, since it is larger than the sum of its proper divisors (1).

4923706621 is an equidigital number, since it uses as much as digits as its factorization.

4923706621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 4923706621 is about 70169.1286891892. The cubic root of 4923706621 is about 1701.2340084152.

The spelling of 4923706621 in words is "four billion, nine hundred twenty-three million, seven hundred six thousand, six hundred twenty-one".