3993953 has 2 divisors, whose sum is σ = 3993954. Its totient is φ = 3993952.

The previous prime is 3993949. The next prime is 3993959. The reversal of 3993953 is 3593993.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3972049 + 21904 = 1993^2 + 148^2 .

It is a cyclic number.

It is not a de Polignac number, because 3993953 - 2² = 3993949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3993953.

It is not a weakly prime, because it can be changed into another prime (3993959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1996976 + 1996977.

It is an arithmetic number, because the mean of its divisors is an integer number (1996977).

Almost surely, 2^3993953 is an apocalyptic number.

It is an amenable number.

3993953 is a deficient number, since it is larger than the sum of its proper divisors (1).

3993953 is an equidigital number, since it uses as much as digits as its factorization.

3993953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 98415, while the sum is 41.

The square root of 3993953 is about 1998.4876782207. The cubic root of 3993953 is about 158.6600730691.

The spelling of 3993953 in words is "three million, nine hundred ninety-three thousand, nine hundred fifty-three".