5091866 has 32 divisors (see below), whose sum is σ = 8682240. Its totient is φ = 2223936.

The previous prime is 5091847. The next prime is 5091881. The reversal of 5091866 is 6681905.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64415 + ... + 64493.

It is an arithmetic number, because the mean of its divisors is an integer number (271320).

Almost surely, 2^5091866 is an apocalyptic number.

5091866 is a deficient number, since it is larger than the sum of its proper divisors (3590374).

5091866 is a wasteful number, since it uses less digits than its factorization.

5091866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 5091866 is about 2256.5163416204. The cubic root of 5091866 is about 172.0385031884.

The spelling of 5091866 in words is "five million, ninety-one thousand, eight hundred sixty-six".