2047851 has 24 divisors (see below), whose sum is σ = 3328416. Its totient is φ = 1203840.

The previous prime is 2047841. The next prime is 2047879. The reversal of 2047851 is 1587402.

It is not a de Polignac number, because 2047851 - 2⁵ = 2047819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2047811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2311 + ... + 3071.

It is an arithmetic number, because the mean of its divisors is an integer number (138684).

2^2047851 is an apocalyptic number.

2047851 is a deficient number, since it is larger than the sum of its proper divisors (1280565).

2047851 is a wasteful number, since it uses less digits than its factorization.

2047851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803 (or 800 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 2047851 is about 1431.0314461954. The cubic root of 2047851 is about 126.9890043594.

The spelling of 2047851 in words is "two million, forty-seven thousand, eight hundred fifty-one".