961217 has 8 divisors (see below), whose sum is σ = 1005312. Its totient is φ = 918000.

The previous prime is 961201. The next prime is 961241. The reversal of 961217 is 712169.

961217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 961217 - 2⁴ = 961201 is a prime.

It is a Duffinian number.

It is a plaindrome in base 7.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 961217.

It is not an unprimeable number, because it can be changed into a prime (961277) 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, 2978 + ... + 3284.

It is an arithmetic number, because the mean of its divisors is an integer number (125664).

2⁹⁶¹²¹⁷ is an apocalyptic number.

It is an amenable number.

961217 is a deficient number, since it is larger than the sum of its proper divisors (44095).

961217 is a wasteful number, since it uses less digits than its factorization.

961217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439.

The product of its digits is 756, while the sum is 26.

The square root of 961217 is about 980.4167481230. The cubic root of 961217 is about 98.6901512051.

Subtracting from 961217 its sum of digits (26), we obtain a triangular number (961191 = T₁₃₈₆).

The spelling of 961217 in words is "nine hundred sixty-one thousand, two hundred seventeen".