971205 has 8 divisors (see below), whose sum is σ = 1553952. Its totient is φ = 517968.

The previous prime is 971197. The next prime is 971207. The reversal of 971205 is 502179.

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

It is not a de Polignac number, because 971205 - 2³ = 971197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32359 + ... + 32388.

It is an arithmetic number, because the mean of its divisors is an integer number (194244).

2⁹⁷¹²⁰⁵ is an apocalyptic number.

It is an amenable number.

971205 is a deficient number, since it is larger than the sum of its proper divisors (582747).

971205 is a wasteful number, since it uses less digits than its factorization.

971205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64755.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 971205 is about 985.4973363739. The cubic root of 971205 is about 99.0308035969.

It can be divided in two parts, 971 and 205, that added together give a triangular number (1176 = T₄₈).

The spelling of 971205 in words is "nine hundred seventy-one thousand, two hundred five".