478184783 has 2 divisors, whose sum is σ = 478184784. Its totient is φ = 478184782.

The previous prime is 478184779. The next prime is 478184873. The reversal of 478184783 is 387481874.

Together with next prime (478184873) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 478184783 - 2² = 478184779 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478186783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239092391 + 239092392.

It is an arithmetic number, because the mean of its divisors is an integer number (239092392).

Almost surely, 2^478184783 is an apocalyptic number.

478184783 is a deficient number, since it is larger than the sum of its proper divisors (1).

478184783 is an equidigital number, since it uses as much as digits as its factorization.

478184783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1204224, while the sum is 50.

The square root of 478184783 is about 21867.4365895960. The cubic root of 478184783 is about 781.9852905704.

The spelling of 478184783 in words is "four hundred seventy-eight million, one hundred eighty-four thousand, seven hundred eighty-three".