4791986 has 8 divisors (see below), whose sum is σ = 7240860. Its totient is φ = 2378368.

The previous prime is 4791973. The next prime is 4792001. The reversal of 4791986 is 6891974.

It can be written as a sum of positive squares in 2 ways, for example, as 4280761 + 511225 = 2069^2 + 715^2 .

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

It is an Ulam number.

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 3 ways as a sum of consecutive naturals, for example, 8471 + ... + 9018.

Almost surely, 2^4791986 is an apocalyptic number.

4791986 is a deficient number, since it is larger than the sum of its proper divisors (2448874).

4791986 is a wasteful number, since it uses less digits than its factorization.

4791986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17628.

The product of its digits is 108864, while the sum is 44.

The square root of 4791986 is about 2189.0605290855. The cubic root of 4791986 is about 168.5926020243.

The spelling of 4791986 in words is "four million, seven hundred ninety-one thousand, nine hundred eighty-six".