847880051 has 2 divisors, whose sum is σ = 847880052. Its totient is φ = 847880050.

The previous prime is 847880021. The next prime is 847880147. The reversal of 847880051 is 150088748.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-847880051 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 847879990 and 847880008.

It is not a weakly prime, because it can be changed into another prime (847880021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 423940025 + 423940026.

It is an arithmetic number, because the mean of its divisors is an integer number (423940026).

Almost surely, 2^847880051 is an apocalyptic number.

847880051 is a deficient number, since it is larger than the sum of its proper divisors (1).

847880051 is an equidigital number, since it uses as much as digits as its factorization.

847880051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 71680, while the sum is 41.

The square root of 847880051 is about 29118.3799515014. The cubic root of 847880051 is about 946.4800677120.

The spelling of 847880051 in words is "eight hundred forty-seven million, eight hundred eighty thousand, fifty-one".