385241897 has 2 divisors, whose sum is σ = 385241898. Its totient is φ = 385241896.

The previous prime is 385241851. The next prime is 385241917. The reversal of 385241897 is 798142583.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218418841 + 166823056 = 14779^2 + 12916^2 .

It is a cyclic number.

It is not a de Polignac number, because 385241897 - 2⁶ = 385241833 is a prime.

It is a super-2 number, since 2×385241897² = 296822638408317218, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (385241807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192620948 + 192620949.

It is an arithmetic number, because the mean of its divisors is an integer number (192620949).

Almost surely, 2^385241897 is an apocalyptic number.

It is an amenable number.

385241897 is a deficient number, since it is larger than the sum of its proper divisors (1).

385241897 is an equidigital number, since it uses as much as digits as its factorization.

385241897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 47.

The square root of 385241897 is about 19627.5800087530. The cubic root of 385241897 is about 727.6309622012.

The spelling of 385241897 in words is "three hundred eighty-five million, two hundred forty-one thousand, eight hundred ninety-seven".