2166463 has 8 divisors (see below), whose sum is σ = 2470608. Its totient is φ = 1881984.

The previous prime is 2166457. The next prime is 2166467. The reversal of 2166463 is 3646612.

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

It is not a de Polignac number, because 2166463 - 2⁵ = 2166431 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 (2166467) 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, 4681 + ... + 5122.

It is an arithmetic number, because the mean of its divisors is an integer number (308826).

2^2166463 is an apocalyptic number.

2166463 is a deficient number, since it is larger than the sum of its proper divisors (304145).

2166463 is a wasteful number, since it uses less digits than its factorization.

2166463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9833.

The product of its digits is 5184, while the sum is 28.

The square root of 2166463 is about 1471.8909606353. The cubic root of 2166463 is about 129.3948799839.

The spelling of 2166463 in words is "two million, one hundred sixty-six thousand, four hundred sixty-three".