3940801 has 2 divisors, whose sum is σ = 3940802. Its totient is φ = 3940800.

The previous prime is 3940799. The next prime is 3940823. The reversal of 3940801 is 1080493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3940225 + 576 = 1985^2 + 24^2 .

It is a cyclic number.

It is not a de Polignac number, because 3940801 - 2¹ = 3940799 is a prime.

Together with 3940799, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3940841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1970400 + 1970401.

It is an arithmetic number, because the mean of its divisors is an integer number (1970401).

Almost surely, 2^3940801 is an apocalyptic number.

It is an amenable number.

3940801 is a deficient number, since it is larger than the sum of its proper divisors (1).

3940801 is an equidigital number, since it uses as much as digits as its factorization.

3940801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 3940801 is about 1985.1450828592. The cubic root of 3940801 is about 157.9531052412.

The spelling of 3940801 in words is "three million, nine hundred forty thousand, eight hundred one".