5191668 has 48 divisors (see below), whose sum is σ = 13728960. Its totient is φ = 1696032.

The previous prime is 5191651. The next prime is 5191673. The reversal of 5191668 is 8661915.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5271 + ... + 6177.

It is an arithmetic number, because the mean of its divisors is an integer number (286020).

Almost surely, 2^5191668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5191668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6864480).

5191668 is an abundant number, since it is smaller than the sum of its proper divisors (8537292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5191668 is a wasteful number, since it uses less digits than its factorization.

5191668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973 (or 965 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 5191668 is about 2278.5232059384. The cubic root of 5191668 is about 173.1552394970.

It can be divided in two parts, 51916 and 68, that added together give a square (51984 = 228²).

The spelling of 5191668 in words is "five million, one hundred ninety-one thousand, six hundred sixty-eight".