688482890 has 16 divisors (see below), whose sum is σ = 1268090208. Its totient is φ = 268988496.

The previous prime is 688482869. The next prime is 688482911. The reversal of 688482890 is 98284886.

It is an interprime number because it is at equal distance from previous prime (688482869) and next prime (688482911).

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, 800132 + ... + 800991.

It is an arithmetic number, because the mean of its divisors is an integer number (79255638).

Almost surely, 2^688482890 is an apocalyptic number.

688482890 is a deficient number, since it is larger than the sum of its proper divisors (579607318).

688482890 is a wasteful number, since it uses less digits than its factorization.

688482890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601173.

The product of its (nonzero) digits is 1769472, while the sum is 53.

The square root of 688482890 is about 26238.9574869125. The cubic root of 688482890 is about 883.0074828347.

The spelling of 688482890 in words is "six hundred eighty-eight million, four hundred eighty-two thousand, eight hundred ninety".