897408085687 has 8 divisors (see below), whose sum is σ = 928364376240. Its totient is φ = 866452540800.

The previous prime is 897408085669. The next prime is 897408085697. The reversal of 897408085687 is 786580804798.

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 897408085687 - 2³¹ = 895260602039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897408085667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3493812 + ... + 3741862.

It is an arithmetic number, because the mean of its divisors is an integer number (116045547030).

Almost surely, 2^897408085687 is an apocalyptic number.

897408085687 is a deficient number, since it is larger than the sum of its proper divisors (30956290553).

897408085687 is a wasteful number, since it uses less digits than its factorization.

897408085687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372833.

The product of its (nonzero) digits is 216760320, while the sum is 70.

The spelling of 897408085687 in words is "eight hundred ninety-seven billion, four hundred eight million, eighty-five thousand, six hundred eighty-seven".