4194681 has 4 divisors (see below), whose sum is σ = 5592912. Its totient is φ = 2796452.

The previous prime is 4194679. The next prime is 4194713. The reversal of 4194681 is 1864914.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4194681 - 2¹ = 4194679 is a prime.

It is a super-2 number, since 2×4194681² = 35190697383522, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (4194601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 699111 + ... + 699116.

It is an arithmetic number, because the mean of its divisors is an integer number (1398228).

Almost surely, 2^4194681 is an apocalyptic number.

It is an amenable number.

4194681 is a deficient number, since it is larger than the sum of its proper divisors (1398231).

4194681 is a wasteful number, since it uses less digits than its factorization.

4194681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398230.

The product of its digits is 6912, while the sum is 33.

The square root of 4194681 is about 2048.0920389475. The cubic root of 4194681 is about 161.2747260923.

The spelling of 4194681 in words is "four million, one hundred ninety-four thousand, six hundred eighty-one".