1688048743 has 8 divisors (see below), whose sum is σ = 1742391200. Its totient is φ = 1634165280.

The previous prime is 1688048717. The next prime is 1688048759. The reversal of 1688048743 is 3478408861.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1688048743 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 (1688048783) 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, 107268 + ... + 121993.

It is an arithmetic number, because the mean of its divisors is an integer number (217798900).

Almost surely, 2^1688048743 is an apocalyptic number.

1688048743 is a deficient number, since it is larger than the sum of its proper divisors (54342457).

1688048743 is a wasteful number, since it uses less digits than its factorization.

1688048743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229497.

The product of its (nonzero) digits is 1032192, while the sum is 49.

The square root of 1688048743 is about 41085.8703570948. The cubic root of 1688048743 is about 1190.6798231707.

The spelling of 1688048743 in words is "one billion, six hundred eighty-eight million, forty-eight thousand, seven hundred forty-three".