2958689 has 4 divisors (see below), whose sum is σ = 2965956. Its totient is φ = 2951424.

The previous prime is 2958677. The next prime is 2958707. The reversal of 2958689 is 9868592.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 350464 + 2608225 = 592^2 + 1615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2958689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2952689) 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, 2984 + ... + 3849.

It is an arithmetic number, because the mean of its divisors is an integer number (741489).

2^2958689 is an apocalyptic number.

It is an amenable number.

2958689 is a deficient number, since it is larger than the sum of its proper divisors (7267).

2958689 is an equidigital number, since it uses as much as digits as its factorization.

2958689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7266.

The product of its digits is 311040, while the sum is 47.

The square root of 2958689 is about 1720.0840095763. The cubic root of 2958689 is about 143.5598862979.

Subtracting 2958689 from its reverse (9868592), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 2958689 in words is "two million, nine hundred fifty-eight thousand, six hundred eighty-nine".