3967697 has 4 divisors (see below), whose sum is σ = 3980016. Its totient is φ = 3955380.

The previous prime is 3967687. The next prime is 3967699. The reversal of 3967697 is 7967693.

3967697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7967693 = 2053 ⋅3881.

It is a cyclic number.

It is not a de Polignac number, because 3967697 - 2⁸ = 3967441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3967699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5663 + ... + 6324.

It is an arithmetic number, because the mean of its divisors is an integer number (995004).

Almost surely, 2^3967697 is an apocalyptic number.

It is an amenable number.

3967697 is a deficient number, since it is larger than the sum of its proper divisors (12319).

3967697 is a wasteful number, since it uses less digits than its factorization.

3967697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12318.

The product of its digits is 428652, while the sum is 47.

The square root of 3967697 is about 1991.9078793960. The cubic root of 3967697 is about 158.3116345764.

It can be divided in two parts, 3967 and 697, that added together give a palindrome (4664).

The spelling of 3967697 in words is "three million, nine hundred sixty-seven thousand, six hundred ninety-seven".