688422141 has 24 divisors (see below), whose sum is σ = 1105262496. Its totient is φ = 409350240.

The previous prime is 688422139. The next prime is 688422143. The reversal of 688422141 is 141224886.

It is an interprime number because it is at equal distance from previous prime (688422139) and next prime (688422143).

It is not a de Polignac number, because 688422141 - 2¹ = 688422139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 688422096 and 688422105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688422143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60355 + ... + 70848.

It is an arithmetic number, because the mean of its divisors is an integer number (46052604).

Almost surely, 2^688422141 is an apocalyptic number.

It is an amenable number.

688422141 is a deficient number, since it is larger than the sum of its proper divisors (416840355).

688422141 is a wasteful number, since it uses less digits than its factorization.

688422141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131273 (or 131270 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 688422141 is about 26237.7998505972. The cubic root of 688422141 is about 882.9815110446.

The spelling of 688422141 in words is "six hundred eighty-eight million, four hundred twenty-two thousand, one hundred forty-one".