2942861 has 8 divisors (see below), whose sum is σ = 3091200. Its totient is φ = 2797920.

The previous prime is 2942843. The next prime is 2942881. The reversal of 2942861 is 1682492.

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 2942861 - 2¹⁰ = 2941837 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 (2942881) 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 7 ways as a sum of consecutive naturals, for example, 1025 + ... + 2633.

It is an arithmetic number, because the mean of its divisors is an integer number (386400).

2^2942861 is an apocalyptic number.

It is an amenable number.

2942861 is a deficient number, since it is larger than the sum of its proper divisors (148339).

2942861 is a wasteful number, since it uses less digits than its factorization.

2942861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699.

The product of its digits is 6912, while the sum is 32.

The square root of 2942861 is about 1715.4769016224. The cubic root of 2942861 is about 143.3034292521.

The spelling of 2942861 in words is "two million, nine hundred forty-two thousand, eight hundred sixty-one".