477291491 has 2 divisors, whose sum is σ = 477291492. Its totient is φ = 477291490.

The previous prime is 477291487. The next prime is 477291497. The reversal of 477291491 is 194192774.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 477291491 - 2² = 477291487 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (477291497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238645745 + 238645746.

It is an arithmetic number, because the mean of its divisors is an integer number (238645746).

Almost surely, 2^477291491 is an apocalyptic number.

477291491 is a deficient number, since it is larger than the sum of its proper divisors (1).

477291491 is an equidigital number, since it uses as much as digits as its factorization.

477291491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 44.

The square root of 477291491 is about 21847.0018766878. The cubic root of 477291491 is about 781.4980475212.

The spelling of 477291491 in words is "four hundred seventy-seven million, two hundred ninety-one thousand, four hundred ninety-one".