3968507 has 2 divisors, whose sum is σ = 3968508. Its totient is φ = 3968506.

The previous prime is 3968501. The next prime is 3968521. The reversal of 3968507 is 7058693.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3968507 - 2⁴ = 3968491 is a prime.

It is not a weakly prime, because it can be changed into another prime (3968501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1984253 + 1984254.

It is an arithmetic number, because the mean of its divisors is an integer number (1984254).

Almost surely, 2^3968507 is an apocalyptic number.

3968507 is a deficient number, since it is larger than the sum of its proper divisors (1).

3968507 is an equidigital number, since it uses as much as digits as its factorization.

3968507 is an odious number, because the sum of its binary digits is odd.

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

The square root of 3968507 is about 1992.1111916758. Note that the first 4 decimals coincide. The cubic root of 3968507 is about 158.3224068791.

The spelling of 3968507 in words is "three million, nine hundred sixty-eight thousand, five hundred seven".