689842486 has 16 divisors (see below), whose sum is σ = 1039961520. Its totient is φ = 343193760.

The previous prime is 689842469. The next prime is 689842493. The reversal of 689842486 is 684248986.

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, 424756 + ... + 426376.

It is an arithmetic number, because the mean of its divisors is an integer number (64997595).

Almost surely, 2^689842486 is an apocalyptic number.

689842486 is a deficient number, since it is larger than the sum of its proper divisors (350119034).

689842486 is a wasteful number, since it uses less digits than its factorization.

689842486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559.

The product of its digits is 5308416, while the sum is 55.

The square root of 689842486 is about 26264.8526742489. The cubic root of 689842486 is about 883.5883464821.

The spelling of 689842486 in words is "six hundred eighty-nine million, eight hundred forty-two thousand, four hundred eighty-six".