971697 has 4 divisors (see below), whose sum is σ = 1295600. Its totient is φ = 647796.

The previous prime is 971693. The next prime is 971699. The reversal of 971697 is 796179.

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.

It is not a de Polignac number, because 971697 - 2² = 971693 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (971693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161947 + ... + 161952.

It is an arithmetic number, because the mean of its divisors is an integer number (323900).

2⁹⁷¹⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

971697 is a deficient number, since it is larger than the sum of its proper divisors (323903).

971697 is a wasteful number, since it uses less digits than its factorization.

971697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323902.

The product of its digits is 23814, while the sum is 39.

The square root of 971697 is about 985.7469249255. The cubic root of 971697 is about 99.0475233523.

The spelling of 971697 in words is "nine hundred seventy-one thousand, six hundred ninety-seven".