971995 has 8 divisors (see below), whose sum is σ = 1182816. Its totient is φ = 766656.

The previous prime is 971989. The next prime is 972001. The reversal of 971995 is 599179.

It is an interprime number because it is at equal distance from previous prime (971989) and next prime (972001).

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 971995 - 2⁹ = 971483 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 967 + ... + 1696.

It is an arithmetic number, because the mean of its divisors is an integer number (147852).

2⁹⁷¹⁹⁹⁵ is an apocalyptic number.

971995 is a deficient number, since it is larger than the sum of its proper divisors (210821).

971995 is a wasteful number, since it uses less digits than its factorization.

971995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2741.

The product of its digits is 25515, while the sum is 40.

The square root of 971995 is about 985.8980677535. The cubic root of 971995 is about 99.0576476143.

Subtracting from 971995 its reverse (599179), we obtain a triangular number (372816 = T₈₆₃).

The spelling of 971995 in words is "nine hundred seventy-one thousand, nine hundred ninety-five".