4834840721 has 2 divisors, whose sum is σ = 4834840722. Its totient is φ = 4834840720.

The previous prime is 4834840607. The next prime is 4834840729. The reversal of 4834840721 is 1270484384.

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., 2848890625 + 1985950096 = 53375^2 + 44564^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4834840721 is a prime.

It is not a weakly prime, because it can be changed into another prime (4834840729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2417420360 + 2417420361.

It is an arithmetic number, because the mean of its divisors is an integer number (2417420361).

Almost surely, 2^4834840721 is an apocalyptic number.

It is an amenable number.

4834840721 is a deficient number, since it is larger than the sum of its proper divisors (1).

4834840721 is an equidigital number, since it uses as much as digits as its factorization.

4834840721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 4834840721 is about 69533.0189262627. The cubic root of 4834840721 is about 1690.9368568135.

The spelling of 4834840721 in words is "four billion, eight hundred thirty-four million, eight hundred forty thousand, seven hundred twenty-one".