688060431 has 24 divisors (see below), whose sum is σ = 1054937520. Its totient is φ = 430653696.

The previous prime is 688060423. The next prime is 688060463. The reversal of 688060431 is 134060886.

It is a happy number.

It is not a de Polignac number, because 688060431 - 2³ = 688060423 is a prime.

It is a super-2 number, since 2×688060431² = 946854313415811522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688060411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58741 + ... + 69473.

It is an arithmetic number, because the mean of its divisors is an integer number (43955730).

Almost surely, 2^688060431 is an apocalyptic number.

688060431 is a deficient number, since it is larger than the sum of its proper divisors (366877089).

688060431 is a wasteful number, since it uses less digits than its factorization.

688060431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11175 (or 11172 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 688060431 is about 26230.9060270514. The cubic root of 688060431 is about 882.8268388958.

The spelling of 688060431 in words is "six hundred eighty-eight million, sixty thousand, four hundred thirty-one".