478906393 has 16 divisors (see below), whose sum is σ = 551583360. Its totient is φ = 407310336.

The previous prime is 478906387. The next prime is 478906399. The reversal of 478906393 is 393609874.

It is an interprime number because it is at equal distance from previous prime (478906387) and next prime (478906399).

It is a cyclic number.

It is not a de Polignac number, because 478906393 - 2¹³ = 478898201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478906399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 915430 + ... + 915952.

It is an arithmetic number, because the mean of its divisors is an integer number (34473960).

Almost surely, 2^478906393 is an apocalyptic number.

It is an amenable number.

478906393 is a deficient number, since it is larger than the sum of its proper divisors (72676967).

478906393 is a wasteful number, since it uses less digits than its factorization.

478906393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296.

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 478906393 is about 21883.9300172524. The cubic root of 478906393 is about 782.3784473687.

The spelling of 478906393 in words is "four hundred seventy-eight million, nine hundred six thousand, three hundred ninety-three".