1463666 has 8 divisors (see below), whose sum is σ = 2324700. Its totient is φ = 688768.

The previous prime is 1463647. The next prime is 1463719. The reversal of 1463666 is 6663641.

It can be written as a sum of positive squares in 2 ways, for example, as 1256641 + 207025 = 1121^2 + 455^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21491 + ... + 21558.

2^1463666 is an apocalyptic number.

1463666 is a deficient number, since it is larger than the sum of its proper divisors (861034).

1463666 is a wasteful number, since it uses less digits than its factorization.

1463666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43068.

The product of its digits is 15552, while the sum is 32.

The square root of 1463666 is about 1209.8206478648. The cubic root of 1463666 is about 113.5395917174.

The spelling of 1463666 in words is "one million, four hundred sixty-three thousand, six hundred sixty-six".