1662479 has 8 divisors (see below), whose sum is σ = 2046240. Its totient is φ = 1315296.

The previous prime is 1662467. The next prime is 1662487. The reversal of 1662479 is 9742661.

1662479 is nontrivially palindromic in base 6.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1662479 - 2⁸ = 1662223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9044 + ... + 9225.

It is an arithmetic number, because the mean of its divisors is an integer number (255780).

2^1662479 is an apocalyptic number.

1662479 is a deficient number, since it is larger than the sum of its proper divisors (383761).

1662479 is a wasteful number, since it uses less digits than its factorization.

1662479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18289.

The product of its digits is 18144, while the sum is 35.

The square root of 1662479 is about 1289.3715523463. The cubic root of 1662479 is about 118.4637263090.

The spelling of 1662479 in words is "one million, six hundred sixty-two thousand, four hundred seventy-nine".