689480087 has 8 divisors (see below), whose sum is σ = 700403760. Its totient is φ = 678618880.

The previous prime is 689480081. The next prime is 689480107. The reversal of 689480087 is 780084986.

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

It is a cyclic number.

It is not a de Polignac number, because 689480087 - 2⁸ = 689479831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689480081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6887 + ... + 37767.

It is an arithmetic number, because the mean of its divisors is an integer number (87550470).

Almost surely, 2^689480087 is an apocalyptic number.

689480087 is a deficient number, since it is larger than the sum of its proper divisors (10923673).

689480087 is a wasteful number, since it uses less digits than its factorization.

689480087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31233.

The product of its (nonzero) digits is 774144, while the sum is 50.

The square root of 689480087 is about 26257.9528333798. The cubic root of 689480087 is about 883.4335924965.

The spelling of 689480087 in words is "six hundred eighty-nine million, four hundred eighty thousand, eighty-seven".