4998381 has 4 divisors (see below), whose sum is σ = 6664512. Its totient is φ = 3332252.

The previous prime is 4998373. The next prime is 4998407. The reversal of 4998381 is 1838994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4998381 - 2³ = 4998373 is a prime.

It is a super-2 number, since 2×4998381² = 49967625242322, which contains 22 as substring.

It is a D-number.

4998381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4998341) 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, 833061 + ... + 833066.

It is an arithmetic number, because the mean of its divisors is an integer number (1666128).

Almost surely, 2^4998381 is an apocalyptic number.

It is an amenable number.

4998381 is a deficient number, since it is larger than the sum of its proper divisors (1666131).

4998381 is a wasteful number, since it uses less digits than its factorization.

4998381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666130.

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

The square root of 4998381 is about 2235.7059287840. The cubic root of 4998381 is about 170.9791363349.

The spelling of 4998381 in words is "four million, nine hundred ninety-eight thousand, three hundred eighty-one".