2194705 has 4 divisors (see below), whose sum is σ = 2633652. Its totient is φ = 1755760.

The previous prime is 2194697. The next prime is 2194721. The reversal of 2194705 is 5074912.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 614656 + 1580049 = 784^2 + 1257^2 .

It is not a de Polignac number, because 2194705 - 2³ = 2194697 is a prime.

It is a Duffinian number.

2194705 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219466 + ... + 219475.

It is an arithmetic number, because the mean of its divisors is an integer number (658413).

2^2194705 is an apocalyptic number.

It is an amenable number.

2194705 is a deficient number, since it is larger than the sum of its proper divisors (438947).

2194705 is an equidigital number, since it uses as much as digits as its factorization.

2194705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438946.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 2194705 is about 1481.4536779798. The cubic root of 2194705 is about 129.9547179568.

The spelling of 2194705 in words is "two million, one hundred ninety-four thousand, seven hundred five".