971633 has 8 divisors (see below), whose sum is σ = 1080576. Its totient is φ = 867600.

The previous prime is 971591. The next prime is 971639. The reversal of 971633 is 336179.

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 971633 - 2⁶ = 971569 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 971596 and 971605.

It is not an unprimeable number, because it can be changed into a prime (971639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 803 + ... + 1608.

It is an arithmetic number, because the mean of its divisors is an integer number (135072).

2⁹⁷¹⁶³³ is an apocalyptic number.

It is an amenable number.

971633 is a deficient number, since it is larger than the sum of its proper divisors (108943).

971633 is a wasteful number, since it uses less digits than its factorization.

971633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2455.

The product of its digits is 3402, while the sum is 29.

The square root of 971633 is about 985.7144616977. The cubic root of 971633 is about 99.0453487441.

The spelling of 971633 in words is "nine hundred seventy-one thousand, six hundred thirty-three".