2990843 has 4 divisors (see below), whose sum is σ = 3047328. Its totient is φ = 2934360.

The previous prime is 2990839. The next prime is 2990879. The reversal of 2990843 is 3480992.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2990843 - 2² = 2990839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2990833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28163 + ... + 28268.

It is an arithmetic number, because the mean of its divisors is an integer number (761832).

2^2990843 is an apocalyptic number.

2990843 is a deficient number, since it is larger than the sum of its proper divisors (56485).

2990843 is an equidigital number, since it uses as much as digits as its factorization.

2990843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56484.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 2990843 is about 1729.4053891439. The cubic root of 2990843 is about 144.0780665951.

The spelling of 2990843 in words is "two million, nine hundred ninety thousand, eight hundred forty-three".