689990335 has 8 divisors (see below), whose sum is σ = 831637296. Its totient is φ = 549559680.

The previous prime is 689990311. The next prime is 689990381. The reversal of 689990335 is 533099986.

It is a happy number.

689990335 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 689990335 - 2⁵ = 689990303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302826 + ... + 305095.

It is an arithmetic number, because the mean of its divisors is an integer number (103954662).

Almost surely, 2^689990335 is an apocalyptic number.

689990335 is a deficient number, since it is larger than the sum of its proper divisors (141646961).

689990335 is a wasteful number, since it uses less digits than its factorization.

689990335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608153.

The product of its (nonzero) digits is 1574640, while the sum is 52.

The square root of 689990335 is about 26267.6671023523. The cubic root of 689990335 is about 883.6514663606.

The spelling of 689990335 in words is "six hundred eighty-nine million, nine hundred ninety thousand, three hundred thirty-five".