961280 has 36 divisors (see below), whose sum is σ = 2305632. Its totient is φ = 384000.

The previous prime is 961277. The next prime is 961283. The reversal of 961280 is 82169.

It is an interprime number because it is at equal distance from previous prime (961277) and next prime (961283).

It is not an unprimeable number, because it can be changed into a prime (961283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 905 + ... + 1655.

2⁹⁶¹²⁸⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 961280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1152816).

961280 is an abundant number, since it is smaller than the sum of its proper divisors (1344352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

961280 is an equidigital number, since it uses as much as digits as its factorization.

961280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772 (or 758 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 961280 is about 980.4488767906. The cubic root of 961280 is about 98.6923072717.

The spelling of 961280 in words is "nine hundred sixty-one thousand, two hundred eighty".