419979 has 12 divisors (see below), whose sum is σ = 651624. Its totient is φ = 239904.

The previous prime is 419959. The next prime is 419999. The reversal of 419979 is 979914.

It is an interprime number because it is at equal distance from previous prime (419959) and next prime (419999).

It is not a de Polignac number, because 419979 - 2⁹ = 419467 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (419929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1282 + ... + 1575.

It is an arithmetic number, because the mean of its divisors is an integer number (54302).

2⁴¹⁹⁹⁷⁹ is an apocalyptic number.

419979 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

419979 is a deficient number, since it is larger than the sum of its proper divisors (231645).

419979 is a wasteful number, since it uses less digits than its factorization.

419979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2874 (or 2867 counting only the distinct ones).

The product of its digits is 20412, while the sum is 39.

The square root of 419979 is about 648.0578677865. The cubic root of 419979 is about 74.8874757060.

Adding to 419979 its product of digits (20412), we get a triangular number (440391 = T₉₃₈).

It can be divided in two parts, 4199 and 79, that added together give a triangular number (4278 = T₉₂).

The spelling of 419979 in words is "four hundred nineteen thousand, nine hundred seventy-nine".