897913 has 4 divisors (see below), whose sum is σ = 899968. Its totient is φ = 895860.

The previous prime is 897907. The next prime is 897931. The reversal of 897913 is 319798.

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: 319798 = 2 ⋅159899.

It is a cyclic number.

It is not a de Polignac number, because 897913 - 2⁵ = 897881 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (897983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81 + ... + 1342.

It is an arithmetic number, because the mean of its divisors is an integer number (224992).

2⁸⁹⁷⁹¹³ is an apocalyptic number.

It is an amenable number.

897913 is a deficient number, since it is larger than the sum of its proper divisors (2055).

897913 is a wasteful number, since it uses less digits than its factorization.

897913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2054.

The product of its digits is 13608, while the sum is 37.

The square root of 897913 is about 947.5827140677. The cubic root of 897913 is about 96.4742519473.

The spelling of 897913 in words is "eight hundred ninety-seven thousand, nine hundred thirteen".