477881617 has 4 divisors (see below), whose sum is σ = 484612416. Its totient is φ = 471150820.

The previous prime is 477881561. The next prime is 477881623. The reversal of 477881617 is 716188774.

It is a happy number.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-477881617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (477882617) 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, 3365293 + ... + 3365434.

It is an arithmetic number, because the mean of its divisors is an integer number (121153104).

Almost surely, 2^477881617 is an apocalyptic number.

It is an amenable number.

477881617 is a deficient number, since it is larger than the sum of its proper divisors (6730799).

477881617 is an equidigital number, since it uses as much as digits as its factorization.

477881617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6730798.

The product of its digits is 526848, while the sum is 49.

The square root of 477881617 is about 21860.5035852333. The cubic root of 477881617 is about 781.8199977943.

The spelling of 477881617 in words is "four hundred seventy-seven million, eight hundred eighty-one thousand, six hundred seventeen".