4990786 has 8 divisors (see below), whose sum is σ = 7503804. Its totient is φ = 2489520.

The previous prime is 4990781. The next prime is 4990823. The reversal of 4990786 is 6870994.

It can be written as a sum of positive squares in 2 ways, for example, as 4704561 + 286225 = 2169^2 + 535^2 .

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

It is not an unprimeable number, because it can be changed into a prime (4990781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1785 + ... + 3628.

Almost surely, 2^4990786 is an apocalyptic number.

4990786 is a deficient number, since it is larger than the sum of its proper divisors (2513018).

4990786 is a wasteful number, since it uses less digits than its factorization.

4990786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5876.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 4990786 is about 2234.0067144035. The cubic root of 4990786 is about 170.8924919576.

It can be divided in two parts, 4990 and 786, that added together give a square (5776 = 76²).

The spelling of 4990786 in words is "four million, nine hundred ninety thousand, seven hundred eighty-six".