961919 has 12 divisors (see below), whose sum is σ = 1139544. Its totient is φ = 809424.

The previous prime is 961879. The next prime is 961927. The reversal of 961919 is 919169.

It is not a de Polignac number, because 961919 - 2⁸ = 961663 is a prime.

It is a super-2 number, since 2×961919² = 1850576325122, which contains 22 as substring.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3137 + ... + 3429.

It is an arithmetic number, because the mean of its divisors is an integer number (94962).

2⁹⁶¹⁹¹⁹ is an apocalyptic number.

961919 is a deficient number, since it is larger than the sum of its proper divisors (177625).

961919 is a wasteful number, since it uses less digits than its factorization.

961919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374 (or 367 counting only the distinct ones).

The product of its digits is 4374, while the sum is 35.

The square root of 961919 is about 980.7746938008. The cubic root of 961919 is about 98.7141706261.

The spelling of 961919 in words is "nine hundred sixty-one thousand, nine hundred nineteen".