429979 has 4 divisors (see below), whose sum is σ = 469080. Its totient is φ = 390880.

The previous prime is 429973. The next prime is 429991. The reversal of 429979 is 979924.

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

It is a cyclic number.

It is not a de Polignac number, because 429979 - 2³ = 429971 is a prime.

It is a Duffinian number.

429979 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (429971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19534 + ... + 19555.

It is an arithmetic number, because the mean of its divisors is an integer number (117270).

2⁴²⁹⁹⁷⁹ is an apocalyptic number.

429979 is a deficient number, since it is larger than the sum of its proper divisors (39101).

429979 is a wasteful number, since it uses less digits than its factorization.

429979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39100.

The product of its digits is 40824, while the sum is 40.

The square root of 429979 is about 655.7278398848. The cubic root of 429979 is about 75.4771944044.

Subtracting 429979 from its reverse (979924), we obtain a palindrome (549945).

The spelling of 429979 in words is "four hundred twenty-nine thousand, nine hundred seventy-nine".