4991356 has 12 divisors (see below), whose sum is σ = 8750560. Its totient is φ = 2491200.

The previous prime is 4991347. The next prime is 4991359. The reversal of 4991356 is 6531994.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4991359) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3556 + ... + 4756.

Almost surely, 2^4991356 is an apocalyptic number.

It is an amenable number.

4991356 is a deficient number, since it is larger than the sum of its proper divisors (3759204).

4991356 is a wasteful number, since it uses less digits than its factorization.

4991356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2244 (or 2242 counting only the distinct ones).

The product of its digits is 29160, while the sum is 37.

The square root of 4991356 is about 2234.1342842363. The cubic root of 4991356 is about 170.8989976137.

The spelling of 4991356 in words is "four million, nine hundred ninety-one thousand, three hundred fifty-six".