4942989 has 6 divisors (see below), whose sum is σ = 7139886. Its totient is φ = 3295320.

The previous prime is 4942969. The next prime is 4942991. The reversal of 4942989 is 9892494.

4942989 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3392964 + 1550025 = 1842^2 + 1245^2 .

It is not a de Polignac number, because 4942989 - 2⁵ = 4942957 is a prime.

It is a Curzon number.

4942989 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4942909) 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, 274602 + ... + 274619.

It is an arithmetic number, because the mean of its divisors is an integer number (1189981).

Almost surely, 2^4942989 is an apocalyptic number.

It is an amenable number.

4942989 is a deficient number, since it is larger than the sum of its proper divisors (2196897).

4942989 is a wasteful number, since it uses less digits than its factorization.

4942989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549227 (or 549224 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 4942989 is about 2223.2833827472. The cubic root of 4942989 is about 170.3451924840.

The spelling of 4942989 in words is "four million, nine hundred forty-two thousand, nine hundred eighty-nine".