477731663 has 2 divisors, whose sum is σ = 477731664. Its totient is φ = 477731662.

The previous prime is 477731629. The next prime is 477731729. The reversal of 477731663 is 366137774.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 477731663 - 2⁶ = 477731599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (477739663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238865831 + 238865832.

It is an arithmetic number, because the mean of its divisors is an integer number (238865832).

Almost surely, 2^477731663 is an apocalyptic number.

477731663 is a deficient number, since it is larger than the sum of its proper divisors (1).

477731663 is an equidigital number, since it uses as much as digits as its factorization.

477731663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 444528, while the sum is 44.

The square root of 477731663 is about 21857.0735232327. The cubic root of 477731663 is about 781.7382137315.

The spelling of 477731663 in words is "four hundred seventy-seven million, seven hundred thirty-one thousand, six hundred sixty-three".