897838043 has 2 divisors, whose sum is σ = 897838044. Its totient is φ = 897838042.

The previous prime is 897838037. The next prime is 897838061. The reversal of 897838043 is 340838798.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 897838043 - 2¹² = 897833947 is a prime.

It is a super-2 number, since 2×897838043² = 1612226302916139698, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 897837982 and 897838000.

It is not a weakly prime, because it can be changed into another prime (897838013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448919021 + 448919022.

It is an arithmetic number, because the mean of its divisors is an integer number (448919022).

Almost surely, 2^897838043 is an apocalyptic number.

897838043 is a deficient number, since it is larger than the sum of its proper divisors (1).

897838043 is an equidigital number, since it uses as much as digits as its factorization.

897838043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The square root of 897838043 is about 29963.9457181460. The cubic root of 897838043 is about 964.7156734361.

The spelling of 897838043 in words is "eight hundred ninety-seven million, eight hundred thirty-eight thousand, forty-three".