897903619 has 2 divisors, whose sum is σ = 897903620. Its totient is φ = 897903618.

The previous prime is 897903613. The next prime is 897903667. The reversal of 897903619 is 916309798.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 897903619 - 2⁹ = 897903107 is a prime.

It is a super-2 number, since 2×897903619² = 1612461818026594322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (897903613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448951809 + 448951810.

It is an arithmetic number, because the mean of its divisors is an integer number (448951810).

Almost surely, 2^897903619 is an apocalyptic number.

897903619 is a deficient number, since it is larger than the sum of its proper divisors (1).

897903619 is an equidigital number, since it uses as much as digits as its factorization.

897903619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 52.

The square root of 897903619 is about 29965.0399465777. The cubic root of 897903619 is about 964.7391597264.

The spelling of 897903619 in words is "eight hundred ninety-seven million, nine hundred three thousand, six hundred nineteen".