477779379 has 64 divisors (see below), whose sum is σ = 833725440. Its totient is φ = 236113920.

The previous prime is 477779369. The next prime is 477779381. The reversal of 477779379 is 973977774.

It is not a de Polignac number, because 477779379 - 2⁹ = 477778867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (477779359) 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 63 ways as a sum of consecutive naturals, for example, 488539 + ... + 489515.

It is an arithmetic number, because the mean of its divisors is an integer number (13026960).

Almost surely, 2^477779379 is an apocalyptic number.

477779379 is a deficient number, since it is larger than the sum of its proper divisors (355946061).

477779379 is a wasteful number, since it uses less digits than its factorization.

477779379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100.

The product of its digits is 16336404, while the sum is 60.

The square root of 477779379 is about 21858.1650419243. The cubic root of 477779379 is about 781.7642396240.

The spelling of 477779379 in words is "four hundred seventy-seven million, seven hundred seventy-nine thousand, three hundred seventy-nine".