3986715379 has 2 divisors, whose sum is σ = 3986715380. Its totient is φ = 3986715378.

The previous prime is 3986715361. The next prime is 3986715433. The reversal of 3986715379 is 9735176893.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3986715379 - 2⁷ = 3986715251 is a prime.

It is a super-2 number, since 2×3986715379² = 31787799026310227282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3986716379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1993357689 + 1993357690.

It is an arithmetic number, because the mean of its divisors is an integer number (1993357690).

Almost surely, 2^3986715379 is an apocalyptic number.

3986715379 is a deficient number, since it is larger than the sum of its proper divisors (1).

3986715379 is an equidigital number, since it uses as much as digits as its factorization.

3986715379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8573040, while the sum is 58.

The square root of 3986715379 is about 63140.4417073558. The cubic root of 3986715379 is about 1585.6417677972.

The spelling of 3986715379 in words is "three billion, nine hundred eighty-six million, seven hundred fifteen thousand, three hundred seventy-nine".