2993885 has 4 divisors (see below), whose sum is σ = 3592668. Its totient is φ = 2395104.

The previous prime is 2993869. The next prime is 2993891. The reversal of 2993885 is 5883992.

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

It can be written as a sum of positive squares in 2 ways, for example, as 737881 + 2256004 = 859^2 + 1502^2 .

It is a cyclic number.

It is not a de Polignac number, because 2993885 - 2⁴ = 2993869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299384 + ... + 299393.

It is an arithmetic number, because the mean of its divisors is an integer number (898167).

2^2993885 is an apocalyptic number.

It is an amenable number.

2993885 is a deficient number, since it is larger than the sum of its proper divisors (598783).

2993885 is an equidigital number, since it uses as much as digits as its factorization.

2993885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598782.

The product of its digits is 155520, while the sum is 44.

The square root of 2993885 is about 1730.2846586617. The cubic root of 2993885 is about 144.1268975287.

The spelling of 2993885 in words is "two million, nine hundred ninety-three thousand, eight hundred eighty-five".