479819649 has 4 divisors (see below), whose sum is σ = 639759536. Its totient is φ = 319879764.

The previous prime is 479819647. The next prime is 479819651. The reversal of 479819649 is 946918974.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (479819647) and next prime (479819651).

It is not a de Polignac number, because 479819649 - 2¹ = 479819647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (479819647) 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, 79969939 + ... + 79969944.

It is an arithmetic number, because the mean of its divisors is an integer number (159939884).

Almost surely, 2^479819649 is an apocalyptic number.

It is an amenable number.

479819649 is a deficient number, since it is larger than the sum of its proper divisors (159939887).

479819649 is a wasteful number, since it uses less digits than its factorization.

479819649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159939886.

The product of its digits is 3919104, while the sum is 57.

The square root of 479819649 is about 21904.7859838895. The cubic root of 479819649 is about 782.8754534087.

It can be divided in two parts, 47981 and 9649, that added together give a triangular number (57630 = T₃₃₉).

The spelling of 479819649 in words is "four hundred seventy-nine million, eight hundred nineteen thousand, six hundred forty-nine".