4890778 has 4 divisors (see below), whose sum is σ = 7336170. Its totient is φ = 2445388.

The previous prime is 4890761. The next prime is 4890779. The reversal of 4890778 is 8770984.

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., 4190209 + 700569 = 2047^2 + 837^2 .

It is not an unprimeable number, because it can be changed into a prime (4890779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1222693 + ... + 1222696.

Almost surely, 2^4890778 is an apocalyptic number.

4890778 is a deficient number, since it is larger than the sum of its proper divisors (2445392).

4890778 is a wasteful number, since it uses less digits than its factorization.

4890778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2445391.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 4890778 is about 2211.5103436340. The cubic root of 4890778 is about 169.7433034767.

The spelling of 4890778 in words is "four million, eight hundred ninety thousand, seven hundred seventy-eight".