971653 has 2 divisors, whose sum is σ = 971654. Its totient is φ = 971652.

The previous prime is 971651. The next prime is 971683. The reversal of 971653 is 356179.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 879844 + 91809 = 938^2 + 303^2 .

It is a cyclic number.

It is not a de Polignac number, because 971653 - 2¹ = 971651 is a prime.

Together with 971651, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (971651) 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 as a sum of consecutive naturals, namely, 485826 + 485827.

It is an arithmetic number, because the mean of its divisors is an integer number (485827).

2⁹⁷¹⁶⁵³ is an apocalyptic number.

It is an amenable number.

971653 is a deficient number, since it is larger than the sum of its proper divisors (1).

971653 is an equidigital number, since it uses as much as digits as its factorization.

971653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5670, while the sum is 31.

The square root of 971653 is about 985.7246065712. The cubic root of 971653 is about 99.0460283194.

The spelling of 971653 in words is "nine hundred seventy-one thousand, six hundred fifty-three".