3967801 has 2 divisors, whose sum is σ = 3967802. Its totient is φ = 3967800.

The previous prime is 3967793. The next prime is 3967811. The reversal of 3967801 is 1087693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2755600 + 1212201 = 1660^2 + 1101^2 .

It is a cyclic number.

It is not a de Polignac number, because 3967801 - 2³ = 3967793 is a prime.

It is not a weakly prime, because it can be changed into another prime (3967811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1983900 + 1983901.

It is an arithmetic number, because the mean of its divisors is an integer number (1983901).

Almost surely, 2^3967801 is an apocalyptic number.

It is an amenable number.

3967801 is a deficient number, since it is larger than the sum of its proper divisors (1).

3967801 is an equidigital number, since it uses as much as digits as its factorization.

3967801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 3967801 is about 1991.9339848499. The cubic root of 3967801 is about 158.3130177689.

The spelling of 3967801 in words is "three million, nine hundred sixty-seven thousand, eight hundred one".