681597248 has 28 divisors (see below), whose sum is σ = 1396179072. Its totient is φ = 329804160.

The previous prime is 681597229. The next prime is 681597263. The reversal of 681597248 is 842795186.

It is a junction number, because it is equal to n+sod(n) for n = 681597196 and 681597205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169790 + ... + 173757.

Almost surely, 2^681597248 is an apocalyptic number.

It is an amenable number.

681597248 is an abundant number, since it is smaller than the sum of its proper divisors (714581824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

681597248 is a wasteful number, since it uses less digits than its factorization.

681597248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343590 (or 343580 counting only the distinct ones).

The product of its digits is 967680, while the sum is 50.

The square root of 681597248 is about 26107.4174900544. The cubic root of 681597248 is about 880.0539085432.

The spelling of 681597248 in words is "six hundred eighty-one million, five hundred ninety-seven thousand, two hundred forty-eight".