3846691397 has 2 divisors, whose sum is σ = 3846691398. Its totient is φ = 3846691396.

The previous prime is 3846691393. The next prime is 3846691411. The reversal of 3846691397 is 7931966483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3335524516 + 511166881 = 57754^2 + 22609^2 .

It is a cyclic number.

It is not a de Polignac number, because 3846691397 - 2² = 3846691393 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3846691393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1923345698 + 1923345699.

It is an arithmetic number, because the mean of its divisors is an integer number (1923345699).

Almost surely, 2^3846691397 is an apocalyptic number.

It is an amenable number.

3846691397 is a deficient number, since it is larger than the sum of its proper divisors (1).

3846691397 is an equidigital number, since it uses as much as digits as its factorization.

3846691397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5878656, while the sum is 56.

The square root of 3846691397 is about 62021.7010166603. The cubic root of 3846691397 is about 1566.8561096753.

The spelling of 3846691397 in words is "three billion, eight hundred forty-six million, six hundred ninety-one thousand, three hundred ninety-seven".