479947 has 4 divisors (see below), whose sum is σ = 516880. Its totient is φ = 443016.

The previous prime is 479939. The next prime is 479951. The reversal of 479947 is 749974.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 749974 = 2 ⋅374987.

It is a cyclic number.

It is not a de Polignac number, because 479947 - 2³ = 479939 is a prime.

It is a super-3 number, since 3×479947³ = 331666111334433369, which contains 333 as substring.

It is an Ulam number.

479947 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (479957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18447 + ... + 18472.

It is an arithmetic number, because the mean of its divisors is an integer number (129220).

2⁴⁷⁹⁹⁴⁷ is an apocalyptic number.

479947 is a deficient number, since it is larger than the sum of its proper divisors (36933).

479947 is a wasteful number, since it uses less digits than its factorization.

479947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36932.

The product of its digits is 63504, while the sum is 40.

The square root of 479947 is about 692.7820725163. The cubic root of 479947 is about 78.2944709397.

The spelling of 479947 in words is "four hundred seventy-nine thousand, nine hundred forty-seven".