1478663 has 2 divisors, whose sum is σ = 1478664. Its totient is φ = 1478662.

The previous prime is 1478639. The next prime is 1478683. The reversal of 1478663 is 3668741.

It is a strong prime.

It is an emirp because it is prime and its reverse (3668741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1478663 - 2¹⁰ = 1477639 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1478683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 739331 + 739332.

It is an arithmetic number, because the mean of its divisors is an integer number (739332).

2^1478663 is an apocalyptic number.

1478663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1478663 is an equidigital number, since it uses as much as digits as its factorization.

1478663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 35.

The square root of 1478663 is about 1216.0028782861. The cubic root of 1478663 is about 113.9260575183.

The spelling of 1478663 in words is "one million, four hundred seventy-eight thousand, six hundred sixty-three".