2869897 has 8 divisors (see below), whose sum is σ = 2950344. Its totient is φ = 2790528.

The previous prime is 2869883. The next prime is 2869901. The reversal of 2869897 is 7989682.

It is a happy number.

2869897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 423801 + 2446096 = 651^2 + 1564^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2869897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2869897.

It is not an unprimeable number, because it can be changed into a prime (2869807) 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 7 ways as a sum of consecutive naturals, for example, 9013 + ... + 9325.

It is an arithmetic number, because the mean of its divisors is an integer number (368793).

2^2869897 is an apocalyptic number.

It is an amenable number.

2869897 is a deficient number, since it is larger than the sum of its proper divisors (80447).

2869897 is a wasteful number, since it uses less digits than its factorization.

2869897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539.

The product of its digits is 435456, while the sum is 49.

The square root of 2869897 is about 1694.0770348482. The cubic root of 2869897 is about 142.1091701643.

The spelling of 2869897 in words is "two million, eight hundred sixty-nine thousand, eight hundred ninety-seven".