1428479 has 4 divisors (see below), whose sum is σ = 1538376. Its totient is φ = 1318584.

The previous prime is 1428473. The next prime is 1428491. The reversal of 1428479 is 9748241.

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

It is a cyclic number.

It is not a de Polignac number, because 1428479 - 2²⁰ = 379903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54929 + ... + 54954.

It is an arithmetic number, because the mean of its divisors is an integer number (384594).

2^1428479 is an apocalyptic number.

1428479 is a deficient number, since it is larger than the sum of its proper divisors (109897).

1428479 is a wasteful number, since it uses less digits than its factorization.

1428479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109896.

The product of its digits is 16128, while the sum is 35.

The square root of 1428479 is about 1195.1899430634. The cubic root of 1428479 is about 112.6223590507.

The spelling of 1428479 in words is "one million, four hundred twenty-eight thousand, four hundred seventy-nine".