4988999 has 6 divisors (see below), whose sum is σ = 5215896. Its totient is φ = 4771580.

The previous prime is 4988993. The next prime is 4989029. The reversal of 4988999 is 9998894.

It is not a de Polignac number, because 4988999 - 2⁴ = 4988983 is a prime.

It is a super-2 number, since 2×4988999² = 49780222044002, 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 (4988993) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4187 + ... + 5244.

It is an arithmetic number, because the mean of its divisors is an integer number (869316).

Almost surely, 2^4988999 is an apocalyptic number.

4988999 is a deficient number, since it is larger than the sum of its proper divisors (226897).

4988999 is an equidigital number, since it uses as much as digits as its factorization.

4988999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9477 (or 9454 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 56.

The square root of 4988999 is about 2233.6067245601. The cubic root of 4988999 is about 170.8720929437.

The spelling of 4988999 in words is "four million, nine hundred eighty-eight thousand, nine hundred ninety-nine".