971853 has 4 divisors (see below), whose sum is σ = 1295808. Its totient is φ = 647900.

The previous prime is 971851. The next prime is 971857. The reversal of 971853 is 358179.

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 a cyclic number.

It is not a de Polignac number, because 971853 - 2¹ = 971851 is a prime.

It is a D-number.

971853 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 971853.

It is not an unprimeable number, because it can be changed into a prime (971851) 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 3 ways as a sum of consecutive naturals, for example, 161973 + ... + 161978.

It is an arithmetic number, because the mean of its divisors is an integer number (323952).

2⁹⁷¹⁸⁵³ is an apocalyptic number.

It is an amenable number.

971853 is a deficient number, since it is larger than the sum of its proper divisors (323955).

971853 is a wasteful number, since it uses less digits than its factorization.

971853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323954.

The product of its digits is 7560, while the sum is 33.

The square root of 971853 is about 985.8260495645. The cubic root of 971853 is about 99.0528235597.

The spelling of 971853 in words is "nine hundred seventy-one thousand, eight hundred fifty-three".