961913 has 4 divisors (see below), whose sum is σ = 1012560. Its totient is φ = 911268.

The previous prime is 961879. The next prime is 961927. The reversal of 961913 is 319169.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 961913 - 2⁸ = 961657 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 961913.

It is not an unprimeable number, because it can be changed into a prime (961943) by changing a digit.

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, 25295 + ... + 25332.

It is an arithmetic number, because the mean of its divisors is an integer number (253140).

2⁹⁶¹⁹¹³ is an apocalyptic number.

It is an amenable number.

961913 is a deficient number, since it is larger than the sum of its proper divisors (50647).

961913 is a wasteful number, since it uses less digits than its factorization.

961913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50646.

The product of its digits is 1458, while the sum is 29.

The square root of 961913 is about 980.7716349895. The cubic root of 961913 is about 98.7139653814.

The spelling of 961913 in words is "nine hundred sixty-one thousand, nine hundred thirteen".