3986246461 has 2 divisors, whose sum is σ = 3986246462. Its totient is φ = 3986246460.

The previous prime is 3986246447. The next prime is 3986246471. The reversal of 3986246461 is 1646426893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3824804025 + 161442436 = 61845^2 + 12706^2 .

It is a cyclic number.

It is not a de Polignac number, because 3986246461 - 2²³ = 3977857853 is a prime.

It is a super-3 number, since 3×3986246461³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3986246401) 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, 1993123230 + 1993123231.

It is an arithmetic number, because the mean of its divisors is an integer number (1993123231).

Almost surely, 2^3986246461 is an apocalyptic number.

It is an amenable number.

3986246461 is a deficient number, since it is larger than the sum of its proper divisors (1).

3986246461 is an equidigital number, since it uses as much as digits as its factorization.

3986246461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1492992, while the sum is 49.

The square root of 3986246461 is about 63136.7283045297. The cubic root of 3986246461 is about 1585.5795975602.

The spelling of 3986246461 in words is "three billion, nine hundred eighty-six million, two hundred forty-six thousand, four hundred sixty-one".