385548497 has 2 divisors, whose sum is σ = 385548498. Its totient is φ = 385548496.

The previous prime is 385548479. The next prime is 385548509. The reversal of 385548497 is 794845583.

Together with previous prime (385548479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 283619281 + 101929216 = 16841^2 + 10096^2 .

It is a cyclic number.

It is not a de Polignac number, because 385548497 - 2⁶ = 385548433 is a prime.

It is not a weakly prime, because it can be changed into another prime (385548407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192774248 + 192774249.

It is an arithmetic number, because the mean of its divisors is an integer number (192774249).

Almost surely, 2^385548497 is an apocalyptic number.

It is an amenable number.

385548497 is a deficient number, since it is larger than the sum of its proper divisors (1).

385548497 is an equidigital number, since it uses as much as digits as its factorization.

385548497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4838400, while the sum is 53.

The square root of 385548497 is about 19635.3888935259. The cubic root of 385548497 is about 727.8239426786.

The spelling of 385548497 in words is "three hundred eighty-five million, five hundred forty-eight thousand, four hundred ninety-seven".