485739979 has 4 divisors (see below), whose sum is σ = 493972920. Its totient is φ = 477507040.

The previous prime is 485739973. The next prime is 485740001. The reversal of 485739979 is 979937584.

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 485739979 - 2¹³ = 485731787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (485739973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4116382 + ... + 4116499.

It is an arithmetic number, because the mean of its divisors is an integer number (123493230).

Almost surely, 2^485739979 is an apocalyptic number.

485739979 is a deficient number, since it is larger than the sum of its proper divisors (8232941).

485739979 is an equidigital number, since it uses as much as digits as its factorization.

485739979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8232940.

The product of its digits is 17146080, while the sum is 61.

The square root of 485739979 is about 22039.5094999866. The cubic root of 485739979 is about 786.0821776528.

The spelling of 485739979 in words is "four hundred eighty-five million, seven hundred thirty-nine thousand, nine hundred seventy-nine".