2939489 has 4 divisors (see below), whose sum is σ = 3359424. Its totient is φ = 2519556.

The previous prime is 2939479. The next prime is 2939533. The reversal of 2939489 is 9849392.

2939489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2939489 - 2⁴ = 2939473 is a prime.

It is a super-2 number, since 2×2939489² = 17281191162242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2939449) 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, 209957 + ... + 209970.

It is an arithmetic number, because the mean of its divisors is an integer number (839856).

2^2939489 is an apocalyptic number.

It is an amenable number.

2939489 is a deficient number, since it is larger than the sum of its proper divisors (419935).

2939489 is an equidigital number, since it uses as much as digits as its factorization.

2939489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419934.

The product of its digits is 139968, while the sum is 44.

The square root of 2939489 is about 1714.4938028468. The cubic root of 2939489 is about 143.2486748433.

Subtracting 2939489 from its reverse (9849392), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 2939489 in words is "two million, nine hundred thirty-nine thousand, four hundred eighty-nine".