851876949 has 32 divisors (see below), whose sum is σ = 1417973760. Its totient is φ = 441950400.

The previous prime is 851876923. The next prime is 851876959. The reversal of 851876949 is 949678158.

851876949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 851876949 - 2⁵ = 851876917 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851876959) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215412 + ... + 219330.

It is an arithmetic number, because the mean of its divisors is an integer number (44311680).

Almost surely, 2^851876949 is an apocalyptic number.

It is an amenable number.

851876949 is a deficient number, since it is larger than the sum of its proper divisors (566096811).

851876949 is a wasteful number, since it uses less digits than its factorization.

851876949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4881.

The product of its digits is 4354560, while the sum is 57.

The square root of 851876949 is about 29186.9311336427. The cubic root of 851876949 is about 947.9649693744.

The spelling of 851876949 in words is "eight hundred fifty-one million, eight hundred seventy-six thousand, nine hundred forty-nine".