4897938109 has 2 divisors, whose sum is σ = 4897938110. Its totient is φ = 4897938108.

The previous prime is 4897938037. The next prime is 4897938121. The reversal of 4897938109 is 9018397984.

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., 4871621209 + 26316900 = 69797^2 + 5130^2 .

It is a cyclic number.

It is not a de Polignac number, because 4897938109 - 2¹³ = 4897929917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4897938169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2448969054 + 2448969055.

It is an arithmetic number, because the mean of its divisors is an integer number (2448969055).

Almost surely, 2^4897938109 is an apocalyptic number.

It is an amenable number.

4897938109 is a deficient number, since it is larger than the sum of its proper divisors (1).

4897938109 is an equidigital number, since it uses as much as digits as its factorization.

4897938109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3919104, while the sum is 58.

The square root of 4897938109 is about 69985.2706574748. The cubic root of 4897938109 is about 1698.2609793397.

The spelling of 4897938109 in words is "four billion, eight hundred ninety-seven million, nine hundred thirty-eight thousand, one hundred nine".