961870 has 48 divisors (see below), whose sum is σ = 2183328. Its totient is φ = 302400.

The previous prime is 961861. The next prime is 961871. The reversal of 961870 is 78169.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961871) by changing a digit.

961870 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6295 + ... + 6445.

It is an arithmetic number, because the mean of its divisors is an integer number (45486).

2⁹⁶¹⁸⁷⁰ is an apocalyptic number.

961870 is an abundant number, since it is smaller than the sum of its proper divisors (1221458).

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

961870 is a wasteful number, since it uses less digits than its factorization.

961870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 961870 is about 980.7497132296. The cubic root of 961870 is about 98.7124944362.

The spelling of 961870 in words is "nine hundred sixty-one thousand, eight hundred seventy".