940403 has 2 divisors, whose sum is σ = 940404. Its totient is φ = 940402.

The previous prime is 940399. The next prime is 940421. The reversal of 940403 is 304049.

It is a weak prime.

It is an emirp because it is prime and its reverse (304049) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 940403 - 2² = 940399 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (940483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470201 + 470202.

It is an arithmetic number, because the mean of its divisors is an integer number (470202).

2⁹⁴⁰⁴⁰³ is an apocalyptic number.

940403 is a deficient number, since it is larger than the sum of its proper divisors (1).

940403 is an equidigital number, since it uses as much as digits as its factorization.

940403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 940403 is about 969.7437805936. The cubic root of 940403 is about 97.9726079212.

The spelling of 940403 in words is "nine hundred forty thousand, four hundred three".