4991486 has 8 divisors (see below), whose sum is σ = 7508424. Its totient is φ = 2488680.

The previous prime is 4991479. The next prime is 4991491. The reversal of 4991486 is 6841994.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2600 + ... + 4091.

It is an arithmetic number, because the mean of its divisors is an integer number (938553).

Almost surely, 2^4991486 is an apocalyptic number.

4991486 is a deficient number, since it is larger than the sum of its proper divisors (2516938).

4991486 is a wasteful number, since it uses less digits than its factorization.

4991486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7066.

The product of its digits is 62208, while the sum is 41.

The square root of 4991486 is about 2234.1633780903. The cubic root of 4991486 is about 170.9004812905.

The spelling of 4991486 in words is "four million, nine hundred ninety-one thousand, four hundred eighty-six".