2645897 has 16 divisors (see below), whose sum is σ = 2996352. Its totient is φ = 2323200.

The previous prime is 2645893. The next prime is 2645899. The reversal of 2645897 is 7985462.

2645897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2645897 - 2² = 2645893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2645891) 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 15 ways as a sum of consecutive naturals, for example, 26147 + ... + 26247.

It is an arithmetic number, because the mean of its divisors is an integer number (187272).

2^2645897 is an apocalyptic number.

It is an amenable number.

2645897 is a deficient number, since it is larger than the sum of its proper divisors (350455).

2645897 is a wasteful number, since it uses less digits than its factorization.

2645897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208.

The product of its digits is 120960, while the sum is 41.

The square root of 2645897 is about 1626.6213449970. The cubic root of 2645897 is about 138.3112940486.

The spelling of 2645897 in words is "two million, six hundred forty-five thousand, eight hundred ninety-seven".