897308889655 has 8 divisors (see below), whose sum is σ = 1123586783712. Its totient is φ = 686636367648.

The previous prime is 897308889647. The next prime is 897308889661. The reversal of 897308889655 is 556988803798.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 897308889655 - 2³ = 897308889647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3901342884 + ... + 3901343113.

It is an arithmetic number, because the mean of its divisors is an integer number (140448347964).

Almost surely, 2^897308889655 is an apocalyptic number.

897308889655 is a deficient number, since it is larger than the sum of its proper divisors (226277894057).

897308889655 is a wasteful number, since it uses less digits than its factorization.

897308889655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7802686025.

The product of its (nonzero) digits is 1045094400, while the sum is 76.

The spelling of 897308889655 in words is "eight hundred ninety-seven billion, three hundred eight million, eight hundred eighty-nine thousand, six hundred fifty-five".