477915049 has 4 divisors (see below), whose sum is σ = 478755540. Its totient is φ = 477074560.

The previous prime is 477915019. The next prime is 477915059. The reversal of 477915049 is 940519774.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 940519774 = 2 ⋅470259887.

It can be written as a sum of positive squares in 2 ways, for example, as 286286400 + 191628649 = 16920^2 + 13843^2 .

It is a cyclic number.

It is not a de Polignac number, because 477915049 - 2²¹ = 475817897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (477915019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419392 + ... + 420529.

It is an arithmetic number, because the mean of its divisors is an integer number (119688885).

Almost surely, 2^477915049 is an apocalyptic number.

It is an amenable number.

477915049 is a deficient number, since it is larger than the sum of its proper divisors (840491).

477915049 is an equidigital number, since it uses as much as digits as its factorization.

477915049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840490.

The product of its (nonzero) digits is 317520, while the sum is 46.

The square root of 477915049 is about 21861.2682385995. The cubic root of 477915049 is about 781.8382290855.

The spelling of 477915049 in words is "four hundred seventy-seven million, nine hundred fifteen thousand, forty-nine".