478037641 has 2 divisors, whose sum is σ = 478037642. Its totient is φ = 478037640.

The previous prime is 478037621. The next prime is 478037683. The reversal of 478037641 is 146730874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 459202041 + 18835600 = 21429^2 + 4340^2 .

It is a cyclic number.

It is not a de Polignac number, because 478037641 - 2¹⁹ = 477513353 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 478037594 and 478037603.

It is not a weakly prime, because it can be changed into another prime (478037621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239018820 + 239018821.

It is an arithmetic number, because the mean of its divisors is an integer number (239018821).

Almost surely, 2^478037641 is an apocalyptic number.

It is an amenable number.

478037641 is a deficient number, since it is larger than the sum of its proper divisors (1).

478037641 is an equidigital number, since it uses as much as digits as its factorization.

478037641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 478037641 is about 21864.0719217624. The cubic root of 478037641 is about 781.9050742414.

The spelling of 478037641 in words is "four hundred seventy-eight million, thirty-seven thousand, six hundred forty-one".