2957989 has 4 divisors (see below), whose sum is σ = 3053440. Its totient is φ = 2862540.

The previous prime is 2957963. The next prime is 2958019. The reversal of 2957989 is 9897592.

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 not a de Polignac number, because 2957989 - 2⁷ = 2957861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2957189) 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, 47679 + ... + 47740.

It is an arithmetic number, because the mean of its divisors is an integer number (763360).

2^2957989 is an apocalyptic number.

It is an amenable number.

2957989 is a deficient number, since it is larger than the sum of its proper divisors (95451).

2957989 is an equidigital number, since it uses as much as digits as its factorization.

2957989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95450.

The product of its digits is 408240, while the sum is 49.

The square root of 2957989 is about 1719.8805191059. The cubic root of 2957989 is about 143.5485637328.

The spelling of 2957989 in words is "two million, nine hundred fifty-seven thousand, nine hundred eighty-nine".