3869127397 has 2 divisors, whose sum is σ = 3869127398. Its totient is φ = 3869127396.

The previous prime is 3869127343. The next prime is 3869127403. The reversal of 3869127397 is 7937219683.

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., 3657104676 + 212022721 = 60474^2 + 14561^2 .

It is an emirp because it is prime and its reverse (7937219683) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3869127397 - 2¹¹ = 3869125349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3869127697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1934563698 + 1934563699.

It is an arithmetic number, because the mean of its divisors is an integer number (1934563699).

Almost surely, 2^3869127397 is an apocalyptic number.

It is an amenable number.

3869127397 is a deficient number, since it is larger than the sum of its proper divisors (1).

3869127397 is an equidigital number, since it uses as much as digits as its factorization.

3869127397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3429216, while the sum is 55.

The square root of 3869127397 is about 62202.3102223704. The cubic root of 3869127397 is about 1569.8964591541.

The spelling of 3869127397 in words is "three billion, eight hundred sixty-nine million, one hundred twenty-seven thousand, three hundred ninety-seven".