5191688 has 8 divisors (see below), whose sum is σ = 9734430. Its totient is φ = 2595840.

The previous prime is 5191673. The next prime is 5191699. The reversal of 5191688 is 8861915.

It can be written as a sum of positive squares in only one way, i.e., 4072324 + 1119364 = 2018^2 + 1058^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×5191688³ (a number of 21 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324473 + ... + 324488.

Almost surely, 2^5191688 is an apocalyptic number.

It is an amenable number.

5191688 is a deficient number, since it is larger than the sum of its proper divisors (4542742).

5191688 is a wasteful number, since it uses less digits than its factorization.

5191688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648967 (or 648963 counting only the distinct ones).

The product of its digits is 17280, while the sum is 38.

The square root of 5191688 is about 2278.5275947418. The cubic root of 5191688 is about 173.1554618469.

The spelling of 5191688 in words is "five million, one hundred ninety-one thousand, six hundred eighty-eight".