1363403 has 2 divisors, whose sum is σ = 1363404. Its totient is φ = 1363402.

The previous prime is 1363393. The next prime is 1363409. The reversal of 1363403 is 3043631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1363403 - 2¹² = 1359307 is a prime.

It is not a weakly prime, because it can be changed into another prime (1363409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 681701 + 681702.

It is an arithmetic number, because the mean of its divisors is an integer number (681702).

2^1363403 is an apocalyptic number.

1363403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1363403 is an equidigital number, since it uses as much as digits as its factorization.

1363403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1363403 is about 1167.6484916275. The cubic root of 1363403 is about 110.8854972697.

The spelling of 1363403 in words is "one million, three hundred sixty-three thousand, four hundred three".