851163077 has 4 divisors (see below), whose sum is σ = 854695116. Its totient is φ = 847631040.

The previous prime is 851163067. The next prime is 851163101. The reversal of 851163077 is 770361158.

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 786746401 + 64416676 = 28049^2 + 8026^2 .

It is a cyclic number.

It is not a de Polignac number, because 851163077 - 2⁸ = 851162821 is a prime.

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 851163077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851163037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1765658 + ... + 1766139.

It is an arithmetic number, because the mean of its divisors is an integer number (213673779).

Almost surely, 2^851163077 is an apocalyptic number.

It is an amenable number.

851163077 is a deficient number, since it is larger than the sum of its proper divisors (3532039).

851163077 is a wasteful number, since it uses less digits than its factorization.

851163077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3532038.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 851163077 is about 29174.6992615177. The cubic root of 851163077 is about 947.7000974860.

The spelling of 851163077 in words is "eight hundred fifty-one million, one hundred sixty-three thousand, seventy-seven".