3955001 has 2 divisors, whose sum is σ = 3955002. Its totient is φ = 3955000.

The previous prime is 3954997. The next prime is 3955009. The reversal of 3955001 is 1005593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2105401 + 1849600 = 1451^2 + 1360^2 .

It is an emirp because it is prime and its reverse (1005593) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3955001 - 2² = 3954997 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3955009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1977500 + 1977501.

It is an arithmetic number, because the mean of its divisors is an integer number (1977501).

Almost surely, 2^3955001 is an apocalyptic number.

It is an amenable number.

3955001 is a deficient number, since it is larger than the sum of its proper divisors (1).

3955001 is an equidigital number, since it uses as much as digits as its factorization.

3955001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 675, while the sum is 23.

The square root of 3955001 is about 1988.7184315533. The cubic root of 3955001 is about 158.1425967908.

The spelling of 3955001 in words is "three million, nine hundred fifty-five thousand, one".