2961889 has 4 divisors (see below), whose sum is σ = 3385024. Its totient is φ = 2538756.

The previous prime is 2961877. The next prime is 2961899. The reversal of 2961889 is 9881692.

It is a happy number.

2961889 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 2961889 - 2⁹ = 2961377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2961809) 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, 211557 + ... + 211570.

It is an arithmetic number, because the mean of its divisors is an integer number (846256).

2^2961889 is an apocalyptic number.

It is an amenable number.

2961889 is a deficient number, since it is larger than the sum of its proper divisors (423135).

2961889 is an equidigital number, since it uses as much as digits as its factorization.

2961889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423134.

The product of its digits is 62208, while the sum is 43.

The square root of 2961889 is about 1721.0139453241. The cubic root of 2961889 is about 143.6116238654.

The spelling of 2961889 in words is "two million, nine hundred sixty-one thousand, eight hundred eighty-nine".