477716381 has 2 divisors, whose sum is σ = 477716382. Its totient is φ = 477716380.

The previous prime is 477716353. The next prime is 477716429. The reversal of 477716381 is 183617774.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 359102500 + 118613881 = 18950^2 + 10891^2 .

It is a cyclic number.

It is not a de Polignac number, because 477716381 - 2¹⁴ = 477699997 is a prime.

It is a super-2 number, since 2×477716381² = 456425881351474322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (477712381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238858190 + 238858191.

It is an arithmetic number, because the mean of its divisors is an integer number (238858191).

Almost surely, 2^477716381 is an apocalyptic number.

It is an amenable number.

477716381 is a deficient number, since it is larger than the sum of its proper divisors (1).

477716381 is an equidigital number, since it uses as much as digits as its factorization.

477716381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 197568, while the sum is 44.

The square root of 477716381 is about 21856.7239310927. The cubic root of 477716381 is about 781.7298780543.

The spelling of 477716381 in words is "four hundred seventy-seven million, seven hundred sixteen thousand, three hundred eighty-one".