971642 has 8 divisors (see below), whose sum is σ = 1665696. Its totient is φ = 416412.

The previous prime is 971639. The next prime is 971651. The reversal of 971642 is 246179.

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

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 3 ways as a sum of consecutive naturals, for example, 34688 + ... + 34715.

It is an arithmetic number, because the mean of its divisors is an integer number (208212).

2⁹⁷¹⁶⁴² is an apocalyptic number.

971642 is a deficient number, since it is larger than the sum of its proper divisors (694054).

971642 is a wasteful number, since it uses less digits than its factorization.

971642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69412.

The product of its digits is 3024, while the sum is 29.

The square root of 971642 is about 985.7190269037. The cubic root of 971642 is about 99.0456545542.

The spelling of 971642 in words is "nine hundred seventy-one thousand, six hundred forty-two".