2889381 has 8 divisors (see below), whose sum is σ = 4202784. Its totient is φ = 1751120.

The previous prime is 2889373. The next prime is 2889389. The reversal of 2889381 is 1839882.

It is an interprime number because it is at equal distance from previous prime (2889373) and next prime (2889389).

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 2889381 - 2³ = 2889373 is a prime.

It is a super-2 number, since 2×2889381² = 16697045126322, which contains 22 as substring.

It is a Curzon number.

2889381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2889389) 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, 43746 + ... + 43811.

It is an arithmetic number, because the mean of its divisors is an integer number (525348).

2^2889381 is an apocalyptic number.

It is an amenable number.

2889381 is a deficient number, since it is larger than the sum of its proper divisors (1313403).

2889381 is a wasteful number, since it uses less digits than its factorization.

2889381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87571.

The product of its digits is 27648, while the sum is 39.

The square root of 2889381 is about 1699.8179314268. The cubic root of 2889381 is about 142.4300426083.

It can be divided in two parts, 288 and 9381, that added together give a palindrome (9669).

The spelling of 2889381 in words is "two million, eight hundred eighty-nine thousand, three hundred eighty-one".