689465841 has 8 divisors (see below), whose sum is σ = 919766784. Its totient is φ = 459404400.

The previous prime is 689465839. The next prime is 689465851. The reversal of 689465841 is 148564986.

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

It is not a de Polignac number, because 689465841 - 2¹ = 689465839 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (689465831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53046 + ... + 64751.

It is an arithmetic number, because the mean of its divisors is an integer number (114970848).

Almost surely, 2^689465841 is an apocalyptic number.

It is an amenable number.

689465841 is a deficient number, since it is larger than the sum of its proper divisors (230300943).

689465841 is a wasteful number, since it uses less digits than its factorization.

689465841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119751.

The product of its digits is 1658880, while the sum is 51.

The square root of 689465841 is about 26257.6815617830. The cubic root of 689465841 is about 883.4275079690.

The spelling of 689465841 in words is "six hundred eighty-nine million, four hundred sixty-five thousand, eight hundred forty-one".