2051847 has 12 divisors (see below), whose sum is σ = 3387280. Its totient is φ = 1172448.

The previous prime is 2051839. The next prime is 2051851. The reversal of 2051847 is 7481502.

It is not a de Polignac number, because 2051847 - 2³ = 2051839 is a prime.

It is a super-2 number, since 2×2051847² = 8420152222818, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2051847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051887) 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 11 ways as a sum of consecutive naturals, for example, 16222 + ... + 16347.

2^2051847 is an apocalyptic number.

2051847 is a deficient number, since it is larger than the sum of its proper divisors (1335433).

2051847 is a wasteful number, since it uses less digits than its factorization.

2051847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32582 (or 32579 counting only the distinct ones).

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

The square root of 2051847 is about 1432.4269614888. The cubic root of 2051847 is about 127.0715491596.

The spelling of 2051847 in words is "two million, fifty-one thousand, eight hundred forty-seven".