3891401413 has 2 divisors, whose sum is σ = 3891401414. Its totient is φ = 3891401412.

The previous prime is 3891401399. The next prime is 3891401431. The reversal of 3891401413 is 3141041983.

Together with next prime (3891401431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3802325569 + 89075844 = 61663^2 + 9438^2 .

It is a cyclic number.

It is not a de Polignac number, because 3891401413 - 2¹³ = 3891393221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3891401113) 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, 1945700706 + 1945700707.

It is an arithmetic number, because the mean of its divisors is an integer number (1945700707).

Almost surely, 2^3891401413 is an apocalyptic number.

It is an amenable number.

3891401413 is a deficient number, since it is larger than the sum of its proper divisors (1).

3891401413 is an equidigital number, since it uses as much as digits as its factorization.

3891401413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 3891401413 is about 62381.0982029012. The cubic root of 3891401413 is about 1572.9032534789.

The spelling of 3891401413 in words is "three billion, eight hundred ninety-one million, four hundred one thousand, four hundred thirteen".