689482539 has 12 divisors (see below), whose sum is σ = 996298576. Its totient is φ = 459479952.

The previous prime is 689482529. The next prime is 689482553. The reversal of 689482539 is 935284986.

689482539 is a `hidden beast` number, since 68 + 9 + 48 + 2 + 539 = 666.

It is not a de Polignac number, because 689482539 - 2¹³ = 689474347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (689482529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13122 + ... + 39384.

Almost surely, 2^689482539 is an apocalyptic number.

689482539 is a deficient number, since it is larger than the sum of its proper divisors (306816037).

689482539 is a wasteful number, since it uses less digits than its factorization.

689482539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29186 (or 29183 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 689482539 is about 26257.9995239546. Note that the first 3 decimals coincide. The cubic root of 689482539 is about 883.4346397477.

The spelling of 689482539 in words is "six hundred eighty-nine million, four hundred eighty-two thousand, five hundred thirty-nine".