2989405 has 8 divisors (see below), whose sum is σ = 3599712. Its totient is φ = 2383248.

The previous prime is 2989391. The next prime is 2989409. The reversal of 2989405 is 5049892.

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

It is a cyclic number.

It is not a de Polignac number, because 2989405 - 2⁵ = 2989373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2989409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 874 + ... + 2596.

It is an arithmetic number, because the mean of its divisors is an integer number (449964).

2^2989405 is an apocalyptic number.

It is an amenable number.

2989405 is a deficient number, since it is larger than the sum of its proper divisors (610307).

2989405 is a wasteful number, since it uses less digits than its factorization.

2989405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 2989405 is about 1728.9895893267. The cubic root of 2989405 is about 144.0549719388.

The spelling of 2989405 in words is "two million, nine hundred eighty-nine thousand, four hundred five".