2981239 has 8 divisors (see below), whose sum is σ = 3259008. Its totient is φ = 2714880.

The previous prime is 2981221. The next prime is 2981243. The reversal of 2981239 is 9321892.

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 2981239 - 2¹¹ = 2979191 is a prime.

It is a Duffinian number.

2981239 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2981039) 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, 2302 + ... + 3355.

It is an arithmetic number, because the mean of its divisors is an integer number (407376).

2^2981239 is an apocalyptic number.

2981239 is a deficient number, since it is larger than the sum of its proper divisors (277769).

2981239 is a wasteful number, since it uses less digits than its factorization.

2981239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5705.

The product of its digits is 7776, while the sum is 34.

The square root of 2981239 is about 1726.6264795838. The cubic root of 2981239 is about 143.9236831978.

The spelling of 2981239 in words is "two million, nine hundred eighty-one thousand, two hundred thirty-nine".