961770 has 16 divisors (see below), whose sum is σ = 2308320. Its totient is φ = 256464.

The previous prime is 961769. The next prime is 961777. The reversal of 961770 is 77169.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 32059 = 961770 / (9 + 6 + 1 + 7 + 7 + 0).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 961770.

It is not an unprimeable number, because it can be changed into a prime (961777) 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, 16000 + ... + 16059.

It is an arithmetic number, because the mean of its divisors is an integer number (144270).

2⁹⁶¹⁷⁷⁰ is an apocalyptic number.

961770 is an abundant number, since it is smaller than the sum of its proper divisors (1346550).

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

961770 is a wasteful number, since it uses less digits than its factorization.

961770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32069.

The product of its (nonzero) digits is 2646, while the sum is 30.

The square root of 961770 is about 980.6987304978. The cubic root of 961770 is about 98.7090734641.

The spelling of 961770 in words is "nine hundred sixty-one thousand, seven hundred seventy".