4019479 has 2 divisors, whose sum is σ = 4019480. Its totient is φ = 4019478.

The previous prime is 4019461. The next prime is 4019501. The reversal of 4019479 is 9749104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4019479 - 2⁵ = 4019447 is a prime.

It is a super-2 number, since 2×4019479² = 32312422862882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4019419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2009739 + 2009740.

It is an arithmetic number, because the mean of its divisors is an integer number (2009740).

Almost surely, 2^4019479 is an apocalyptic number.

4019479 is a deficient number, since it is larger than the sum of its proper divisors (1).

4019479 is an equidigital number, since it uses as much as digits as its factorization.

4019479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 4019479 is about 2004.8638357754. The cubic root of 4019479 is about 158.9973629298.

It can be divided in two parts, 401947 and 9, that added together give a square (401956 = 634²).

The spelling of 4019479 in words is "four million, nineteen thousand, four hundred seventy-nine".