2984861 has 4 divisors (see below), whose sum is σ = 3256224. Its totient is φ = 2713500.

The previous prime is 2984833. The next prime is 2984867. The reversal of 2984861 is 1684892.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2984861 - 2¹⁰ = 2983837 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 (2984867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135665 + ... + 135686.

It is an arithmetic number, because the mean of its divisors is an integer number (814056).

2^2984861 is an apocalyptic number.

It is an amenable number.

2984861 is a deficient number, since it is larger than the sum of its proper divisors (271363).

2984861 is a wasteful number, since it uses less digits than its factorization.

2984861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271362.

The product of its digits is 27648, while the sum is 38.

The square root of 2984861 is about 1727.6750273127. The cubic root of 2984861 is about 143.9819453959.

The spelling of 2984861 in words is "two million, nine hundred eighty-four thousand, eight hundred sixty-one".