479939 has 2 divisors, whose sum is σ = 479940. Its totient is φ = 479938.

The previous prime is 479909. The next prime is 479951. The reversal of 479939 is 939974.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-479939 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 479896 and 479905.

It is not a weakly prime, because it can be changed into another prime (479909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239969 + 239970.

It is an arithmetic number, because the mean of its divisors is an integer number (239970).

2⁴⁷⁹⁹³⁹ is an apocalyptic number.

479939 is a deficient number, since it is larger than the sum of its proper divisors (1).

479939 is an equidigital number, since it uses as much as digits as its factorization.

479939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 41.

The square root of 479939 is about 692.7762986708. The cubic root of 479939 is about 78.2940359200.

The spelling of 479939 in words is "four hundred seventy-nine thousand, nine hundred thirty-nine".