688748141 has 8 divisors (see below), whose sum is σ = 701534784. Its totient is φ = 676035360.

The previous prime is 688748129. The next prime is 688748153. The reversal of 688748141 is 141847886.

It is an interprime number because it is at equal distance from previous prime (688748129) and next prime (688748153).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 688748141 - 2⁶ = 688748077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688748161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536 + ... + 37118.

It is an arithmetic number, because the mean of its divisors is an integer number (87691848).

Almost surely, 2^688748141 is an apocalyptic number.

It is an amenable number.

688748141 is a deficient number, since it is larger than the sum of its proper divisors (12786643).

688748141 is a wasteful number, since it uses less digits than its factorization.

688748141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36931.

The product of its digits is 344064, while the sum is 47.

The square root of 688748141 is about 26244.0115264416. The cubic root of 688748141 is about 883.1208666958.

The spelling of 688748141 in words is "six hundred eighty-eight million, seven hundred forty-eight thousand, one hundred forty-one".