478800061 has 2 divisors, whose sum is σ = 478800062. Its totient is φ = 478800060.

The previous prime is 478800037. The next prime is 478800071. The reversal of 478800061 is 160008874.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 403005625 + 75794436 = 20075^2 + 8706^2 .

It is a cyclic number.

It is not a de Polignac number, because 478800061 - 2⁹ = 478799549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478800001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239400030 + 239400031.

It is an arithmetic number, because the mean of its divisors is an integer number (239400031).

Almost surely, 2^478800061 is an apocalyptic number.

It is an amenable number.

478800061 is a deficient number, since it is larger than the sum of its proper divisors (1).

478800061 is an equidigital number, since it uses as much as digits as its factorization.

478800061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 478800061 is about 21881.5004284441. The cubic root of 478800061 is about 782.3205390285.

The spelling of 478800061 in words is "four hundred seventy-eight million, eight hundred thousand, sixty-one".