478457377 has 2 divisors, whose sum is σ = 478457378. Its totient is φ = 478457376.

The previous prime is 478457347. The next prime is 478457389. The reversal of 478457377 is 773754874.

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., 477684736 + 772641 = 21856^2 + 879^2 .

It is a cyclic number.

It is not a de Polignac number, because 478457377 - 2²³ = 470068769 is a prime.

It is not a weakly prime, because it can be changed into another prime (478457347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239228688 + 239228689.

It is an arithmetic number, because the mean of its divisors is an integer number (239228689).

Almost surely, 2^478457377 is an apocalyptic number.

It is an amenable number.

478457377 is a deficient number, since it is larger than the sum of its proper divisors (1).

478457377 is an equidigital number, since it uses as much as digits as its factorization.

478457377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4609920, while the sum is 52.

The square root of 478457377 is about 21873.6685766243. The cubic root of 478457377 is about 782.1338551792.

The spelling of 478457377 in words is "four hundred seventy-eight million, four hundred fifty-seven thousand, three hundred seventy-seven".