5211688 has 8 divisors (see below), whose sum is σ = 9771930. Its totient is φ = 2605840.

The previous prime is 5211683. The next prime is 5211721. The reversal of 5211688 is 8861125.

It can be written as a sum of positive squares in only one way, i.e., 3526884 + 1684804 = 1878^2 + 1298^2 .

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

It is not an unprimeable number, because it can be changed into a prime (5211683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325723 + ... + 325738.

Almost surely, 2^5211688 is an apocalyptic number.

It is an amenable number.

5211688 is a deficient number, since it is larger than the sum of its proper divisors (4560242).

5211688 is a wasteful number, since it uses less digits than its factorization.

5211688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651467 (or 651463 counting only the distinct ones).

The product of its digits is 3840, while the sum is 31.

The square root of 5211688 is about 2282.9121752709. The cubic root of 5211688 is about 173.3775265356.

It can be divided in two parts, 521 and 1688, that added together give a square (2209 = 47²).

The spelling of 5211688 in words is "five million, two hundred eleven thousand, six hundred eighty-eight".