3968137 has 2 divisors, whose sum is σ = 3968138. Its totient is φ = 3968136.

The previous prime is 3968113. The next prime is 3968149. The reversal of 3968137 is 7318693.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3594816 + 373321 = 1896^2 + 611^2 .

It is a cyclic number.

It is not a de Polignac number, because 3968137 - 2⁷ = 3968009 is a prime.

It is a super-2 number, since 2×3968137² = 31492222501538, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3968096 and 3968105.

It is not a weakly prime, because it can be changed into another prime (3968177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1984068 + 1984069.

It is an arithmetic number, because the mean of its divisors is an integer number (1984069).

Almost surely, 2^3968137 is an apocalyptic number.

It is an amenable number.

3968137 is a deficient number, since it is larger than the sum of its proper divisors (1).

3968137 is an equidigital number, since it uses as much as digits as its factorization.

3968137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 37.

The square root of 3968137 is about 1992.0183232089. The cubic root of 3968137 is about 158.3174863795.

The spelling of 3968137 in words is "three million, nine hundred sixty-eight thousand, one hundred thirty-seven".