478949759 has 2 divisors, whose sum is σ = 478949760. Its totient is φ = 478949758.

The previous prime is 478949753. The next prime is 478949771. The reversal of 478949759 is 957949874.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478949759 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478949753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239474879 + 239474880.

It is an arithmetic number, because the mean of its divisors is an integer number (239474880).

Almost surely, 2^478949759 is an apocalyptic number.

478949759 is a deficient number, since it is larger than the sum of its proper divisors (1).

478949759 is an equidigital number, since it uses as much as digits as its factorization.

478949759 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22861440, while the sum is 62.

The square root of 478949759 is about 21884.9208131992. The cubic root of 478949759 is about 782.4020620041.

The spelling of 478949759 in words is "four hundred seventy-eight million, nine hundred forty-nine thousand, seven hundred fifty-nine".