427403 has 2 divisors, whose sum is σ = 427404. Its totient is φ = 427402.

The previous prime is 427381. The next prime is 427417. The reversal of 427403 is 304724.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 427403 - 2¹² = 423307 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (427423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213701 + 213702.

It is an arithmetic number, because the mean of its divisors is an integer number (213702).

2⁴²⁷⁴⁰³ is an apocalyptic number.

427403 is a deficient number, since it is larger than the sum of its proper divisors (1).

427403 is an equidigital number, since it uses as much as digits as its factorization.

427403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 427403 is about 653.7606595689. The cubic root of 427403 is about 75.3261646836.

The spelling of 427403 in words is "four hundred twenty-seven thousand, four hundred three", and thus it is an iban number.