4185479 has 2 divisors, whose sum is σ = 4185480. Its totient is φ = 4185478.

The previous prime is 4185473. The next prime is 4185481. The reversal of 4185479 is 9745814.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4185479 - 2¹² = 4181383 is a prime.

It is a Sophie Germain prime.

Together with 4185481, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4185473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2092739 + 2092740.

It is an arithmetic number, because the mean of its divisors is an integer number (2092740).

Almost surely, 2^4185479 is an apocalyptic number.

4185479 is a deficient number, since it is larger than the sum of its proper divisors (1).

4185479 is an equidigital number, since it uses as much as digits as its factorization.

4185479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 38.

The square root of 4185479 is about 2045.8443244783. The cubic root of 4185479 is about 161.1567086510.

It can be divided in two parts, 4185 and 479, that added together give a palindrome (4664).

The spelling of 4185479 in words is "four million, one hundred eighty-five thousand, four hundred seventy-nine".