3986507 has 8 divisors (see below), whose sum is σ = 4703232. Its totient is φ = 3306600.

The previous prime is 3986503. The next prime is 3986513. The reversal of 3986507 is 7056893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3986507 - 2² = 3986503 is a prime.

It is a super-2 number, since 2×3986507² = 31784476122098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3986503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8969 + ... + 9402.

It is an arithmetic number, because the mean of its divisors is an integer number (587904).

Almost surely, 2^3986507 is an apocalyptic number.

3986507 is a deficient number, since it is larger than the sum of its proper divisors (716725).

3986507 is a wasteful number, since it uses less digits than its factorization.

3986507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18409.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 3986507 is about 1996.6239004880. The cubic root of 3986507 is about 158.5614141028.

The spelling of 3986507 in words is "three million, nine hundred eighty-six thousand, five hundred seven".