1478999 has 2 divisors, whose sum is σ = 1479000. Its totient is φ = 1478998.

The previous prime is 1478987. The next prime is 1479007. The reversal of 1478999 is 9998741.

It is a strong prime.

It is an emirp because it is prime and its reverse (9998741) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1478999 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1478909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 739499 + 739500.

It is an arithmetic number, because the mean of its divisors is an integer number (739500).

2^1478999 is an apocalyptic number.

1478999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1478999 is an equidigital number, since it uses as much as digits as its factorization.

1478999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 47.

The square root of 1478999 is about 1216.1410280062. The cubic root of 1478999 is about 113.9346860916.

The spelling of 1478999 in words is "one million, four hundred seventy-eight thousand, nine hundred ninety-nine".