689027 has 4 divisors (see below), whose sum is σ = 729576. Its totient is φ = 648480.

The previous prime is 689021. The next prime is 689033. The reversal of 689027 is 720986.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (689021) and next prime (689033).

It is a cyclic number.

It is not a de Polignac number, because 689027 - 2¹⁰ = 688003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 688984 and 689002.

It is not an unprimeable number, because it can be changed into a prime (689021) 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, 20249 + ... + 20282.

It is an arithmetic number, because the mean of its divisors is an integer number (182394).

2⁶⁸⁹⁰²⁷ is an apocalyptic number.

689027 is a deficient number, since it is larger than the sum of its proper divisors (40549).

689027 is a wasteful number, since it uses less digits than its factorization.

689027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40548.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 689027 is about 830.0765024984. The cubic root of 689027 is about 88.3240036031.

The spelling of 689027 in words is "six hundred eighty-nine thousand, twenty-seven".