688096851 has 12 divisors (see below), whose sum is σ = 993466008. Its totient is φ = 423443904.

The previous prime is 688096847. The next prime is 688096867. The reversal of 688096851 is 158690886.

It is not a de Polignac number, because 688096851 - 2² = 688096847 is a prime.

It is a super-2 number, since 2×688096851² = 946954552712232402, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 688096794 and 688096803.

It is not an unprimeable number, because it can be changed into a prime (688096841) 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, 678090 + ... + 679103.

It is an arithmetic number, because the mean of its divisors is an integer number (82788834).

Almost surely, 2^688096851 is an apocalyptic number.

688096851 is a deficient number, since it is larger than the sum of its proper divisors (305369157).

688096851 is a wasteful number, since it uses less digits than its factorization.

688096851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357222 (or 1357209 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 51.

The square root of 688096851 is about 26231.6002371186. The cubic root of 688096851 is about 882.8424150404.

The spelling of 688096851 in words is "six hundred eighty-eight million, ninety-six thousand, eight hundred fifty-one".