689013 has 24 divisors (see below), whose sum is σ = 1112640. Its totient is φ = 421200.

The previous prime is 688999. The next prime is 689021. The reversal of 689013 is 310986.

689013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 689013 - 2⁸ = 688757 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4488 + ... + 4638.

It is an arithmetic number, because the mean of its divisors is an integer number (46360).

2⁶⁸⁹⁰¹³ is an apocalyptic number.

It is an amenable number.

689013 is a deficient number, since it is larger than the sum of its proper divisors (423627).

689013 is a wasteful number, since it uses less digits than its factorization.

689013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 689013 is about 830.0680694979. The cubic root of 689013 is about 88.3234053950.

Adding to 689013 its reverse (310986), we get a palindrome (999999).

It can be divided in two parts, 6890 and 13, that added together give a triangular number (6903 = T₁₁₇).

The spelling of 689013 in words is "six hundred eighty-nine thousand, thirteen".