4993890 has 64 divisors (see below), whose sum is σ = 13461120. Its totient is φ = 1175040.

The previous prime is 4993873. The next prime is 4993897. The reversal of 4993890 is 983994.

It is not an unprimeable number, because it can be changed into a prime (4993897) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12006 + ... + 12414.

It is an arithmetic number, because the mean of its divisors is an integer number (210330).

Almost surely, 2^4993890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4993890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6730560).

4993890 is an abundant number, since it is smaller than the sum of its proper divisors (8467230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4993890 is a wasteful number, since it uses less digits than its factorization.

4993890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 4993890 is about 2234.7013223248. The cubic root of 4993890 is about 170.9279132562.

It can be divided in two parts, 49 and 93890, that added together give a palindrome (93939).

The spelling of 4993890 in words is "four million, nine hundred ninety-three thousand, eight hundred ninety".