4988981 has 4 divisors (see below), whose sum is σ = 5073600. Its totient is φ = 4904364.

The previous prime is 4988959. The next prime is 4988983. The reversal of 4988981 is 1898894.

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 4988981 - 2⁶ = 4988917 is a prime.

It is a super-2 number, since 2×4988981² = 49779862836722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4988983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42221 + ... + 42338.

It is an arithmetic number, because the mean of its divisors is an integer number (1268400).

Almost surely, 2^4988981 is an apocalyptic number.

It is an amenable number.

4988981 is a deficient number, since it is larger than the sum of its proper divisors (84619).

4988981 is an equidigital number, since it uses as much as digits as its factorization.

4988981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84618.

The product of its digits is 165888, while the sum is 47.

The square root of 4988981 is about 2233.6026951989. The cubic root of 4988981 is about 170.8718874448.

The spelling of 4988981 in words is "four million, nine hundred eighty-eight thousand, nine hundred eighty-one".