4991066 has 4 divisors (see below), whose sum is σ = 7486602. Its totient is φ = 2495532.

The previous prime is 4991033. The next prime is 4991101. The reversal of 4991066 is 6601994.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4116841 + 874225 = 2029^2 + 935^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1247765 + ... + 1247768.

Almost surely, 2^4991066 is an apocalyptic number.

4991066 is a deficient number, since it is larger than the sum of its proper divisors (2495536).

4991066 is a wasteful number, since it uses less digits than its factorization.

4991066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2495535.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 4991066 is about 2234.0693811966. The cubic root of 4991066 is about 170.8956877804.

The spelling of 4991066 in words is "four million, nine hundred ninety-one thousand, sixty-six".