477781955 has 8 divisors (see below), whose sum is σ = 655243872. Its totient is φ = 327621888.

The previous prime is 477781919. The next prime is 477781963. The reversal of 477781955 is 559187774.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 477781955 - 2²⁰ = 476733379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 477781897 and 477781906.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6825422 + ... + 6825491.

It is an arithmetic number, because the mean of its divisors is an integer number (81905484).

Almost surely, 2^477781955 is an apocalyptic number.

477781955 is a deficient number, since it is larger than the sum of its proper divisors (177461917).

477781955 is a wasteful number, since it uses less digits than its factorization.

477781955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13650925.

The product of its digits is 2469600, while the sum is 53.

The square root of 477781955 is about 21858.2239671937. The cubic root of 477781955 is about 781.7656446107.

The spelling of 477781955 in words is "four hundred seventy-seven million, seven hundred eighty-one thousand, nine hundred fifty-five".