477638741 has 2 divisors, whose sum is σ = 477638742. Its totient is φ = 477638740.

The previous prime is 477638699. The next prime is 477638747. The reversal of 477638741 is 147836774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 426587716 + 51051025 = 20654^2 + 7145^2 .

It is a cyclic number.

It is not a de Polignac number, because 477638741 - 2¹⁸ = 477376597 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (477638747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238819370 + 238819371.

It is an arithmetic number, because the mean of its divisors is an integer number (238819371).

Almost surely, 2^477638741 is an apocalyptic number.

It is an amenable number.

477638741 is a deficient number, since it is larger than the sum of its proper divisors (1).

477638741 is an equidigital number, since it uses as much as digits as its factorization.

477638741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 790272, while the sum is 47.

The square root of 477638741 is about 21854.9477464486. The cubic root of 477638741 is about 781.6875260099.

The spelling of 477638741 in words is "four hundred seventy-seven million, six hundred thirty-eight thousand, seven hundred forty-one".