3988433 has 2 divisors, whose sum is σ = 3988434. Its totient is φ = 3988432.

The previous prime is 3988427. The next prime is 3988441. The reversal of 3988433 is 3348893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3972049 + 16384 = 1993^2 + 128^2 .

It is an emirp because it is prime and its reverse (3348893) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3988433 - 2¹⁰ = 3987409 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (3988403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1994216 + 1994217.

It is an arithmetic number, because the mean of its divisors is an integer number (1994217).

Almost surely, 2^3988433 is an apocalyptic number.

It is an amenable number.

3988433 is a deficient number, since it is larger than the sum of its proper divisors (1).

3988433 is an equidigital number, since it uses as much as digits as its factorization.

3988433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 38.

The square root of 3988433 is about 1997.1061564173. The cubic root of 3988433 is about 158.5869452353.

The spelling of 3988433 in words is "three million, nine hundred eighty-eight thousand, four hundred thirty-three".