2889605 has 8 divisors (see below), whose sum is σ = 3618432. Its totient is φ = 2211088.

The previous prime is 2889599. The next prime is 2889617. The reversal of 2889605 is 5069882.

2889605 = 98² + 99² + ... + 212².

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-2889605 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12449 + ... + 12678.

It is an arithmetic number, because the mean of its divisors is an integer number (452304).

2^2889605 is an apocalyptic number.

It is an amenable number.

2889605 is a deficient number, since it is larger than the sum of its proper divisors (728827).

2889605 is a wasteful number, since it uses less digits than its factorization.

2889605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25155.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 2889605 is about 1699.8838195594. The cubic root of 2889605 is about 142.4337231550.

The spelling of 2889605 in words is "two million, eight hundred eighty-nine thousand, six hundred five".