2905897 has 4 divisors (see below), whose sum is σ = 2973520. Its totient is φ = 2838276.

The previous prime is 2905891. The next prime is 2905901. The reversal of 2905897 is 7985092.

2905897 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 2905897 - 2⁷ = 2905769 is a prime.

It is a Duffinian number.

2905897 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2905891) 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, 33747 + ... + 33832.

It is an arithmetic number, because the mean of its divisors is an integer number (743380).

2^2905897 is an apocalyptic number.

It is an amenable number.

2905897 is a deficient number, since it is larger than the sum of its proper divisors (67623).

2905897 is an equidigital number, since it uses as much as digits as its factorization.

2905897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67622.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 2905897 is about 1704.6691761160. The cubic root of 2905897 is about 142.7009087701.

The spelling of 2905897 in words is "two million, nine hundred five thousand, eight hundred ninety-seven".