868961 has 4 divisors (see below), whose sum is σ = 897024. Its totient is φ = 840900.

The previous prime is 868957. The next prime is 868993. The reversal of 868961 is 169868.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 868961 - 2² = 868957 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (868951) 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, 13985 + ... + 14046.

It is an arithmetic number, because the mean of its divisors is an integer number (224256).

2⁸⁶⁸⁹⁶¹ is an apocalyptic number.

It is an amenable number.

868961 is a deficient number, since it is larger than the sum of its proper divisors (28063).

868961 is a wasteful number, since it uses less digits than its factorization.

868961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28062.

The product of its digits is 20736, while the sum is 38.

The square root of 868961 is about 932.1807764592. The cubic root of 868961 is about 95.4260092257.

The spelling of 868961 in words is "eight hundred sixty-eight thousand, nine hundred sixty-one".