4893607921 has 2 divisors, whose sum is σ = 4893607922. Its totient is φ = 4893607920.

The previous prime is 4893607891. The next prime is 4893607963. The reversal of 4893607921 is 1297063984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3221697600 + 1671910321 = 56760^2 + 40889^2 .

It is a cyclic number.

It is not a de Polignac number, because 4893607921 - 2⁷ = 4893607793 is a prime.

It is not a weakly prime, because it can be changed into another prime (4893607721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2446803960 + 2446803961.

It is an arithmetic number, because the mean of its divisors is an integer number (2446803961).

Almost surely, 2^4893607921 is an apocalyptic number.

It is an amenable number.

4893607921 is a deficient number, since it is larger than the sum of its proper divisors (1).

4893607921 is an equidigital number, since it uses as much as digits as its factorization.

4893607921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 4893607921 is about 69954.3273929498. The cubic root of 4893607921 is about 1697.7603634114.

The spelling of 4893607921 in words is "four billion, eight hundred ninety-three million, six hundred seven thousand, nine hundred twenty-one".