396984403 has 2 divisors, whose sum is σ = 396984404. Its totient is φ = 396984402.

The previous prime is 396984397. The next prime is 396984407. The reversal of 396984403 is 304489693.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 396984403 - 2¹³ = 396976211 is a prime.

It is not a weakly prime, because it can be changed into another prime (396984407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198492201 + 198492202.

It is an arithmetic number, because the mean of its divisors is an integer number (198492202).

Almost surely, 2^396984403 is an apocalyptic number.

396984403 is a deficient number, since it is larger than the sum of its proper divisors (1).

396984403 is an equidigital number, since it uses as much as digits as its factorization.

396984403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 46.

The square root of 396984403 is about 19924.4674458315. The cubic root of 396984403 is about 734.9500347048.

The spelling of 396984403 in words is "three hundred ninety-six million, nine hundred eighty-four thousand, four hundred three".