897997430401 has 4 divisors (see below), whose sum is σ = 898974577600. Its totient is φ = 897020283204.

The previous prime is 897997430327. The next prime is 897997430431. The reversal of 897997430401 is 104034799798.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 104034799798 = 2 ⋅52017399899.

It is a cyclic number.

It is not a de Polignac number, because 897997430401 - 2²⁵ = 897963875969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 897997430401.

It is not an unprimeable number, because it can be changed into a prime (897997430431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488572221 + ... + 488574058.

It is an arithmetic number, because the mean of its divisors is an integer number (224743644400).

Almost surely, 2^897997430401 is an apocalyptic number.

It is an amenable number.

897997430401 is a deficient number, since it is larger than the sum of its proper divisors (977147199).

897997430401 is an equidigital number, since it uses as much as digits as its factorization.

897997430401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977147198.

The product of its (nonzero) digits is 13716864, while the sum is 61.

The spelling of 897997430401 in words is "eight hundred ninety-seven billion, nine hundred ninety-seven million, four hundred thirty thousand, four hundred one".