3898440253 has 2 divisors, whose sum is σ = 3898440254. Its totient is φ = 3898440252.

The previous prime is 3898440191. The next prime is 3898440257. The reversal of 3898440253 is 3520448983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3558480409 + 339959844 = 59653^2 + 18438^2 .

It is an emirp because it is prime and its reverse (3520448983) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3898440253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3898440257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1949220126 + 1949220127.

It is an arithmetic number, because the mean of its divisors is an integer number (1949220127).

Almost surely, 2^3898440253 is an apocalyptic number.

It is an amenable number.

3898440253 is a deficient number, since it is larger than the sum of its proper divisors (1).

3898440253 is an equidigital number, since it uses as much as digits as its factorization.

3898440253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 829440, while the sum is 46.

The square root of 3898440253 is about 62437.4907647641. The cubic root of 3898440253 is about 1573.8510478995.

The spelling of 3898440253 in words is "three billion, eight hundred ninety-eight million, four hundred forty thousand, two hundred fifty-three".