478852091 has 2 divisors, whose sum is σ = 478852092. Its totient is φ = 478852090.

The previous prime is 478852067. The next prime is 478852093. The reversal of 478852091 is 190258874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 478852091 - 2²² = 474657787 is a prime.

Together with 478852093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (478852093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239426045 + 239426046.

It is an arithmetic number, because the mean of its divisors is an integer number (239426046).

Almost surely, 2^478852091 is an apocalyptic number.

478852091 is a deficient number, since it is larger than the sum of its proper divisors (1).

478852091 is an equidigital number, since it uses as much as digits as its factorization.

478852091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 478852091 is about 21882.6892999924. The cubic root of 478852091 is about 782.3488756048.

The spelling of 478852091 in words is "four hundred seventy-eight million, eight hundred fifty-two thousand, ninety-one".