897375685 has 16 divisors (see below), whose sum is σ = 1142718192. Its totient is φ = 674176000.

The previous prime is 897375683. The next prime is 897375691. The reversal of 897375685 is 586573798.

It can be written as a sum of positive squares in 8 ways, for example, as 84327489 + 813048196 = 9183^2 + 28514^2 .

It is not a de Polignac number, because 897375685 - 2¹ = 897375683 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 (897375683) 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 in 15 ways as a sum of consecutive naturals, for example, 27735 + ... + 50635.

It is an arithmetic number, because the mean of its divisors is an integer number (71419887).

Almost surely, 2^897375685 is an apocalyptic number.

897375685 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

897375685 is a deficient number, since it is larger than the sum of its proper divisors (245342507).

897375685 is a wasteful number, since it uses less digits than its factorization.

897375685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23384.

The product of its digits is 12700800, while the sum is 58.

The square root of 897375685 is about 29956.2294857013. The cubic root of 897375685 is about 964.5500457185.

The spelling of 897375685 in words is "eight hundred ninety-seven million, three hundred seventy-five thousand, six hundred eighty-five".