3993601 has 2 divisors, whose sum is σ = 3993602. Its totient is φ = 3993600.

The previous prime is 3993593. The next prime is 3993617. The reversal of 3993601 is 1063993.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2433600 + 1560001 = 1560^2 + 1249^2 .

It is a cyclic number.

It is not a de Polignac number, because 3993601 - 2³ = 3993593 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3993631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1996800 + 1996801.

It is an arithmetic number, because the mean of its divisors is an integer number (1996801).

It is a Proth number, since it is equal to 975 ⋅ 2¹² + 1 and 975 < 2¹².

Almost surely, 2^3993601 is an apocalyptic number.

It is an amenable number.

3993601 is a deficient number, since it is larger than the sum of its proper divisors (1).

3993601 is an equidigital number, since it uses as much as digits as its factorization.

3993601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 3993601 is about 1998.3996096877. The cubic root of 3993601 is about 158.6554118569.

The spelling of 3993601 in words is "three million, nine hundred ninety-three thousand, six hundred one".