3986712507 has 4 divisors (see below), whose sum is σ = 5315616680. Its totient is φ = 2657808336.

The previous prime is 3986712463. The next prime is 3986712511. The reversal of 3986712507 is 7052176893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7052176893 = 3 ⋅2350725631.

It is not a de Polignac number, because 3986712507 - 2¹¹ = 3986710459 is a prime.

It is a super-2 number, since 2×3986712507² = 31787753226940450098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3986712577) 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 in 3 ways as a sum of consecutive naturals, for example, 664452082 + ... + 664452087.

It is an arithmetic number, because the mean of its divisors is an integer number (1328904170).

Almost surely, 2^3986712507 is an apocalyptic number.

3986712507 is a deficient number, since it is larger than the sum of its proper divisors (1328904173).

3986712507 is a wasteful number, since it uses less digits than its factorization.

3986712507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328904172.

The product of its (nonzero) digits is 635040, while the sum is 48.

The square root of 3986712507 is about 63140.4189644003. The cubic root of 3986712507 is about 1585.6413870357.

The spelling of 3986712507 in words is "three billion, nine hundred eighty-six million, seven hundred twelve thousand, five hundred seven".