897541829 has 2 divisors, whose sum is σ = 897541830. Its totient is φ = 897541828.

The previous prime is 897541781. The next prime is 897541837. The reversal of 897541829 is 928145798.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 894309025 + 3232804 = 29905^2 + 1798^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-897541829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (897541889) 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, 448770914 + 448770915.

It is an arithmetic number, because the mean of its divisors is an integer number (448770915).

Almost surely, 2^897541829 is an apocalyptic number.

It is an amenable number.

897541829 is a deficient number, since it is larger than the sum of its proper divisors (1).

897541829 is an equidigital number, since it uses as much as digits as its factorization.

897541829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 53.

The square root of 897541829 is about 29959.0024700423. The cubic root of 897541829 is about 964.6095690287.

The spelling of 897541829 in words is "eight hundred ninety-seven million, five hundred forty-one thousand, eight hundred twenty-nine".