479986819 has 4 divisors (see below), whose sum is σ = 516908896. Its totient is φ = 443064744.

The previous prime is 479986817. The next prime is 479986831. The reversal of 479986819 is 918689974.

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 479986819 - 2¹ = 479986817 is a prime.

It is a super-2 number, since 2×479986819² = 460774692827477522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (479986813) 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, 18461019 + ... + 18461044.

It is an arithmetic number, because the mean of its divisors is an integer number (129227224).

Almost surely, 2^479986819 is an apocalyptic number.

479986819 is a deficient number, since it is larger than the sum of its proper divisors (36922077).

479986819 is a wasteful number, since it uses less digits than its factorization.

479986819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36922076.

The product of its digits is 7838208, while the sum is 61.

The square root of 479986819 is about 21908.6014843486. The cubic root of 479986819 is about 782.9663612417.

The spelling of 479986819 in words is "four hundred seventy-nine million, nine hundred eighty-six thousand, eight hundred nineteen".