689458029 has 16 divisors (see below), whose sum is σ = 993686400. Its totient is φ = 422698176.

The previous prime is 689458019. The next prime is 689458057. The reversal of 689458029 is 920854986.

It is not a de Polignac number, because 689458029 - 2⁸ = 689457773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689458019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22369 + ... + 43350.

It is an arithmetic number, because the mean of its divisors is an integer number (62105400).

Almost surely, 2^689458029 is an apocalyptic number.

It is an amenable number.

689458029 is a deficient number, since it is larger than the sum of its proper divisors (304228371).

689458029 is a wasteful number, since it uses less digits than its factorization.

689458029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66004.

The product of its (nonzero) digits is 1244160, while the sum is 51.

The square root of 689458029 is about 26257.5328048924. The cubic root of 689458029 is about 883.4241713948.

The spelling of 689458029 in words is "six hundred eighty-nine million, four hundred fifty-eight thousand, twenty-nine".