961505 has 8 divisors (see below), whose sum is σ = 1165632. Its totient is φ = 761328.

The previous prime is 961487. The next prime is 961507. The reversal of 961505 is 505169.

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 961505 - 2¹² = 957409 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 961505.

It is not an unprimeable number, because it can be changed into a prime (961507) 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, 419 + ... + 1448.

It is an arithmetic number, because the mean of its divisors is an integer number (145704).

2⁹⁶¹⁵⁰⁵ is an apocalyptic number.

It is an amenable number.

961505 is a deficient number, since it is larger than the sum of its proper divisors (204127).

961505 is a wasteful number, since it uses less digits than its factorization.

961505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1975.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 961505 is about 980.5636134387. The cubic root of 961505 is about 98.7000067408.

The spelling of 961505 in words is "nine hundred sixty-one thousand, five hundred five".