4789990 has 8 divisors (see below), whose sum is σ = 8622000. Its totient is φ = 1915992.

The previous prime is 4789987. The next prime is 4789991. The reversal of 4789990 is 999874.

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

It is a self number, because there is not a number n which added to its sum of digits gives 4789990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4789991) 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, 239490 + ... + 239509.

It is an arithmetic number, because the mean of its divisors is an integer number (1077750).

Almost surely, 2^4789990 is an apocalyptic number.

4789990 is a deficient number, since it is larger than the sum of its proper divisors (3832010).

4789990 is a wasteful number, since it uses less digits than its factorization.

4789990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479006.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 4789990 is about 2188.6045782644. The cubic root of 4789990 is about 168.5691908842.

The spelling of 4789990 in words is "four million, seven hundred eighty-nine thousand, nine hundred ninety".