897311585 has 8 divisors (see below), whose sum is σ = 1111508736. Its totient is φ = 694692720.

The previous prime is 897311579. The next prime is 897311587. The reversal of 897311585 is 585113798.

It is a happy number.

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

It is not a de Polignac number, because 897311585 - 2⁶ = 897311521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (897311587) 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, 2894399 + ... + 2894708.

It is an arithmetic number, because the mean of its divisors is an integer number (138938592).

Almost surely, 2^897311585 is an apocalyptic number.

It is an amenable number.

897311585 is a deficient number, since it is larger than the sum of its proper divisors (214197151).

897311585 is a wasteful number, since it uses less digits than its factorization.

897311585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5789143.

The product of its digits is 302400, while the sum is 47.

The square root of 897311585 is about 29955.1595722673. The cubic root of 897311585 is about 964.5270790721.

The spelling of 897311585 in words is "eight hundred ninety-seven million, three hundred eleven thousand, five hundred eighty-five".