3996507 has 4 divisors (see below), whose sum is σ = 5328680. Its totient is φ = 2664336.

The previous prime is 3996467. The next prime is 3996511. The reversal of 3996507 is 7056993.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3996507 - 2⁷ = 3996379 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3996527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666082 + ... + 666087.

It is an arithmetic number, because the mean of its divisors is an integer number (1332170).

Almost surely, 2^3996507 is an apocalyptic number.

3996507 is a deficient number, since it is larger than the sum of its proper divisors (1332173).

3996507 is a wasteful number, since it uses less digits than its factorization.

3996507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332172.

The product of its (nonzero) digits is 51030, while the sum is 39.

The square root of 3996507 is about 1999.1265592753. The cubic root of 3996507 is about 158.6938851414.

The spelling of 3996507 in words is "three million, nine hundred ninety-six thousand, five hundred seven".