1479689 has 4 divisors (see below), whose sum is σ = 1482624. Its totient is φ = 1476756.

The previous prime is 1479679. The next prime is 1479713. The reversal of 1479689 is 9869741.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1479689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1479679) 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, 497 + ... + 1790.

It is an arithmetic number, because the mean of its divisors is an integer number (370656).

2^1479689 is an apocalyptic number.

It is an amenable number.

1479689 is a deficient number, since it is larger than the sum of its proper divisors (2935).

1479689 is an equidigital number, since it uses as much as digits as its factorization.

1479689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2934.

The product of its digits is 108864, while the sum is 44.

The square root of 1479689 is about 1216.4246791314. The cubic root of 1479689 is about 113.9524013867.

The spelling of 1479689 in words is "one million, four hundred seventy-nine thousand, six hundred eighty-nine".