689958411 has 8 divisors (see below), whose sum is σ = 926037504. Its totient is φ = 456925800.

The previous prime is 689958407. The next prime is 689958443. The reversal of 689958411 is 114859986.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 689958411 - 2² = 689958407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (689958461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 761091 + ... + 761996.

It is an arithmetic number, because the mean of its divisors is an integer number (115754688).

Almost surely, 2^689958411 is an apocalyptic number.

689958411 is a deficient number, since it is larger than the sum of its proper divisors (236079093).

689958411 is a wasteful number, since it uses less digits than its factorization.

689958411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523241.

The product of its digits is 622080, while the sum is 51.

The square root of 689958411 is about 26267.0594281126. The cubic root of 689958411 is about 883.6378380902.

The spelling of 689958411 in words is "six hundred eighty-nine million, nine hundred fifty-eight thousand, four hundred eleven".