477728449 has 9 divisors (see below), whose sum is σ = 525370881. Its totient is φ = 434080020.

The previous prime is 477728431. The next prime is 477728473. The reversal of 477728449 is 944827774.

The square root of 477728449 is 21857.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 477728449 - 2²³ = 469339841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 477728396 and 477728405.

It is not an unprimeable number, because it can be changed into a prime (477728429) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 239434 + ... + 241420.

Almost surely, 2^477728449 is an apocalyptic number.

477728449 is the 21857-th square number.

477728449 is the 10929-th centered octagonal number.

It is an amenable number.

477728449 is a deficient number, since it is larger than the sum of its proper divisors (47642432).

477728449 is an frugal number, since it uses more digits than its factorization.

477728449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3996 (or 1998 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 52.

The cubic root of 477728449 is about 781.7364606467.

The spelling of 477728449 in words is "four hundred seventy-seven million, seven hundred twenty-eight thousand, four hundred forty-nine".