1466665 has 8 divisors (see below), whose sum is σ = 1770120. Its totient is φ = 1166592.

The previous prime is 1466659. The next prime is 1466677. The reversal of 1466665 is 5666641.

It can be written as a sum of positive squares in 4 ways, for example, as 326041 + 1140624 = 571^2 + 1068^2 .

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 1466665 - 2³ = 1466657 is a prime.

It is a super-2 number, since 2×1466665² = 4302212444450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1466665.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241 + ... + 1729.

It is an arithmetic number, because the mean of its divisors is an integer number (221265).

2^1466665 is an apocalyptic number.

It is an amenable number.

1466665 is a deficient number, since it is larger than the sum of its proper divisors (303455).

1466665 is a wasteful number, since it uses less digits than its factorization.

1466665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691.

The product of its digits is 25920, while the sum is 34.

The square root of 1466665 is about 1211.0594535364. The cubic root of 1466665 is about 113.6170850204.

The spelling of 1466665 in words is "one million, four hundred sixty-six thousand, six hundred sixty-five".