4899093821 has 2 divisors, whose sum is σ = 4899093822. Its totient is φ = 4899093820.

The previous prime is 4899093811. The next prime is 4899093889. The reversal of 4899093821 is 1283909984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3637778596 + 1261315225 = 60314^2 + 35515^2 .

It is a cyclic number.

It is not a de Polignac number, because 4899093821 - 2¹⁴ = 4899077437 is a prime.

It is a super-2 number, since 2×4899093821² = 48002240533920760082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4899093811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2449546910 + 2449546911.

It is an arithmetic number, because the mean of its divisors is an integer number (2449546911).

Almost surely, 2^4899093821 is an apocalyptic number.

It is an amenable number.

4899093821 is a deficient number, since it is larger than the sum of its proper divisors (1).

4899093821 is an equidigital number, since it uses as much as digits as its factorization.

4899093821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1119744, while the sum is 53.

The square root of 4899093821 is about 69993.5269935728. The cubic root of 4899093821 is about 1698.3945420892.

The spelling of 4899093821 in words is "four billion, eight hundred ninety-nine million, ninety-three thousand, eight hundred twenty-one".