961671 has 8 divisors (see below), whose sum is σ = 1292544. Its totient is φ = 635960.

The previous prime is 961663. The next prime is 961679. The reversal of 961671 is 176169.

It is an interprime number because it is at equal distance from previous prime (961663) and next prime (961679).

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 961671 - 2³ = 961663 is a prime.

It is a super-2 number, since 2×961671² = 1849622224482, which contains 22 as substring.

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 961671.

It is not an unprimeable number, because it can be changed into a prime (961679) 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, 831 + ... + 1616.

It is an arithmetic number, because the mean of its divisors is an integer number (161568).

2⁹⁶¹⁶⁷¹ is an apocalyptic number.

961671 is a deficient number, since it is larger than the sum of its proper divisors (330873).

961671 is a wasteful number, since it uses less digits than its factorization.

961671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2581.

The product of its digits is 2268, while the sum is 30.

The square root of 961671 is about 980.6482549824. The cubic root of 961671 is about 98.7056864680.

The spelling of 961671 in words is "nine hundred sixty-one thousand, six hundred seventy-one".