477998137 has 2 divisors, whose sum is σ = 477998138. Its totient is φ = 477998136.

The previous prime is 477998113. The next prime is 477998159. The reversal of 477998137 is 731899774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 438860601 + 39137536 = 20949^2 + 6256^2 .

It is a cyclic number.

It is not a de Polignac number, because 477998137 - 2⁷ = 477998009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (477098137) 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, 238999068 + 238999069.

It is an arithmetic number, because the mean of its divisors is an integer number (238999069).

Almost surely, 2^477998137 is an apocalyptic number.

It is an amenable number.

477998137 is a deficient number, since it is larger than the sum of its proper divisors (1).

477998137 is an equidigital number, since it uses as much as digits as its factorization.

477998137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2667168, while the sum is 55.

The square root of 477998137 is about 21863.1685032156. The cubic root of 477998137 is about 781.8835353316.

The spelling of 477998137 in words is "four hundred seventy-seven million, nine hundred ninety-eight thousand, one hundred thirty-seven".