1479643 has 4 divisors (see below), whose sum is σ = 1614168. Its totient is φ = 1345120.

The previous prime is 1479617. The next prime is 1479671. The reversal of 1479643 is 3469741.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1479643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1479599 and 1479608.

It is not an unprimeable number, because it can be changed into a prime (1479343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67246 + ... + 67267.

It is an arithmetic number, because the mean of its divisors is an integer number (403542).

2^1479643 is an apocalyptic number.

1479643 is a deficient number, since it is larger than the sum of its proper divisors (134525).

1479643 is a wasteful number, since it uses less digits than its factorization.

1479643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134524.

The product of its digits is 18144, while the sum is 34.

The square root of 1479643 is about 1216.4057711142. The cubic root of 1479643 is about 113.9512205383.

The spelling of 1479643 in words is "one million, four hundred seventy-nine thousand, six hundred forty-three".