2981855 has 8 divisors (see below), whose sum is σ = 3624000. Its totient is φ = 2354976.

The previous prime is 2981837. The next prime is 2981857. The reversal of 2981855 is 5581892.

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 2981855 - 2¹⁴ = 2965471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2981857) 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, 3380 + ... + 4169.

It is an arithmetic number, because the mean of its divisors is an integer number (453000).

2^2981855 is an apocalyptic number.

2981855 is a deficient number, since it is larger than the sum of its proper divisors (642145).

2981855 is an equidigital number, since it uses as much as digits as its factorization.

2981855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7633.

The product of its digits is 28800, while the sum is 38.

The square root of 2981855 is about 1726.8048529003. The cubic root of 2981855 is about 143.9335952828.

The spelling of 2981855 in words is "two million, nine hundred eighty-one thousand, eight hundred fifty-five".