860669 has 4 divisors (see below), whose sum is σ = 864960. Its totient is φ = 856380.

The previous prime is 860663. The next prime is 860689. The reversal of 860669 is 966068.

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 860669 - 2⁸ = 860413 is a prime.

It is a super-2 number, since 2×860669² = 1481502255122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (860663) 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, 1829 + ... + 2250.

It is an arithmetic number, because the mean of its divisors is an integer number (216240).

2⁸⁶⁰⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

860669 is a deficient number, since it is larger than the sum of its proper divisors (4291).

860669 is a wasteful number, since it uses less digits than its factorization.

860669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4290.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 860669 is about 927.7224800553. The cubic root of 860669 is about 95.1215065747.

The spelling of 860669 in words is "eight hundred sixty thousand, six hundred sixty-nine".