961117 has 2 divisors, whose sum is σ = 961118. Its totient is φ = 961116.

The previous prime is 961109. The next prime is 961123. The reversal of 961117 is 711169.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 900601 + 60516 = 949^2 + 246^2 .

It is a cyclic number.

It is not a de Polignac number, because 961117 - 2³ = 961109 is a prime.

It is an Ulam number.

961117 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 961091 and 961100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (961157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480558 + 480559.

It is an arithmetic number, because the mean of its divisors is an integer number (480559).

2⁹⁶¹¹¹⁷ is an apocalyptic number.

It is an amenable number.

961117 is a deficient number, since it is larger than the sum of its proper divisors (1).

961117 is an equidigital number, since it uses as much as digits as its factorization.

961117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 378, while the sum is 25.

The square root of 961117 is about 980.3657480757. The cubic root of 961117 is about 98.6867286837.

The spelling of 961117 in words is "nine hundred sixty-one thousand, one hundred seventeen".