4993818 has 32 divisors (see below), whose sum is σ = 10673856. Its totient is φ = 1552128.

The previous prime is 4993817. The next prime is 4993823. The reversal of 4993818 is 8183994.

It is a self number, because there is not a number n which added to its sum of digits gives 4993818.

It is not an unprimeable number, because it can be changed into a prime (4993811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17505 + ... + 17787.

It is an arithmetic number, because the mean of its divisors is an integer number (333558).

Almost surely, 2^4993818 is an apocalyptic number.

4993818 is an abundant number, since it is smaller than the sum of its proper divisors (5680038).

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

4993818 is a wasteful number, since it uses less digits than its factorization.

4993818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478.

The product of its digits is 62208, while the sum is 42.

The square root of 4993818 is about 2234.6852127313. The cubic root of 4993818 is about 170.9270917944.

The spelling of 4993818 in words is "four million, nine hundred ninety-three thousand, eight hundred eighteen".