477381481 has 4 divisors (see below), whose sum is σ = 477981252. Its totient is φ = 476781712.

The previous prime is 477381467. The next prime is 477381497. The reversal of 477381481 is 184183774.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 184183774 = 2 ⋅92091887.

It can be written as a sum of positive squares in 2 ways, for example, as 387302400 + 90079081 = 19680^2 + 9491^2 .

It is a cyclic number.

It is not a de Polignac number, because 477381481 - 2¹¹ = 477379433 is a prime.

It is a super-2 number, since 2×477381481² = 455786156803506722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (477381451) 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, 298690 + ... + 300283.

It is an arithmetic number, because the mean of its divisors is an integer number (119495313).

Almost surely, 2^477381481 is an apocalyptic number.

It is an amenable number.

477381481 is a deficient number, since it is larger than the sum of its proper divisors (599771).

477381481 is an equidigital number, since it uses as much as digits as its factorization.

477381481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599770.

The product of its digits is 150528, while the sum is 43.

The square root of 477381481 is about 21849.0613299519. The cubic root of 477381481 is about 781.5471597801.

The spelling of 477381481 in words is "four hundred seventy-seven million, three hundred eighty-one thousand, four hundred eighty-one".